After running python setup.py build_ext --inplace -j 0:
MacOS 10.14 python 3.6.6
I tried to install pandas from source in a setup virtual environment using pip. I cloned the repository, created the virtual environment with python -m venv. I ran pip install -r requirements-dev.txt Had a few problems with versions of dependencies being too recent and not satisfying requirements, but I manually downgraded them. And when I ran the above "python setup.py build_ext --inplace -j 0" I got the issue mentioned.
Thanks for your help
Comment From: ShaharNaveh
@cleconte987 Thank you for the report!
As a quick-fix I would have remove the -Werror" flag from setup.py, meaning turning this line:
https://github.com/pandas-dev/pandas/blob/aee8e112c9faed31fd112072f497593b5e0fc010/setup.py#L436
from:
extra_compile_args = ["-Werror"]
to:
extra_compile_args = []
Comment From: ShaharNaveh
@WillAyd Is it a good idea to have something like:
if is_platform_windows():
extra_compile_args = []
...
elif is_platform_macos():
extra_compile_args = []
...
else:
extra_compile_args = ["-Werror"]
...
in setup.py?
Comment From: WillAyd
I don’t think we need to do that. clang / gcc mostly have the same flags, and if anything checking in clang is a little looser
Can you post the full traceback (not a screenshot)?
On Mar 21, 2020, at 11:23 AM, MomIsBestFriend notifications@github.com wrote:
@WillAyd https://github.com/WillAyd Is it a good idea to have something like:
if is_platform_windows(): extra_compile_args = [] ... elif is_platform_macos(): extra_compile_args = [] ... else: extra_compile_args = ["-Werror"] ... in setup.py?
— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/pandas-dev/pandas/issues/32882#issuecomment-602083180, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAEU4UMFPAWPFKYTLCJR6JDRIUA2NANCNFSM4LQ4J44Q.
William Ayd william.ayd@icloud.com
Comment From: cleconte987
I don’t think we need to do that. clang / gcc mostly have the same flags, and if anything checking in clang is a little looser Can you post the full traceback (not a screenshot)? On Mar 21, 2020, at 11:23 AM, MomIsBestFriend @.***> wrote: @WillAyd https://github.com/WillAyd Is it a good idea to have something like: if is_platform_windows(): extra_compile_args = [] ... elif is_platform_macos(): extra_compile_args = [] ... else: extra_compile_args = ["-Werror"] ... in setup.py? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#32882 (comment)>, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAEU4UMFPAWPFKYTLCJR6JDRIUA2NANCNFSM4LQ4J44Q. William Ayd william.ayd@icloud.com
Here are the whole logs:
running build_ext building 'pandas._libs.algos' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/algos.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/algos.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/algos.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/algos.cpython-36m-darwin.so building 'pandas._libs.groupby' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/groupby.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/groupby.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/groupby.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/groupby.cpython-36m-darwin.so building 'pandas._libs.hashing' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/hashing.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/hashing.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/hashing.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/hashing.cpython-36m-darwin.so building 'pandas._libs.hashtable' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/hashtable.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/hashtable.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/hashtable.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/hashtable.cpython-36m-darwin.so building 'pandas._libs.index' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/index.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/index.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/index.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/index.cpython-36m-darwin.so building 'pandas._libs.indexing' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/indexing.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/indexing.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/indexing.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/indexing.cpython-36m-darwin.so building 'pandas._libs.internals' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/internals.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/internals.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/internals.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/internals.cpython-36m-darwin.so building 'pandas._libs.interval' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/interval.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/interval.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/interval.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/interval.cpython-36m-darwin.so building 'pandas._libs.join' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/join.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/join.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/join.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/join.cpython-36m-darwin.so building 'pandas._libs.lib' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -Ipandas/_libs -I./pandas/_libs -I./pandas/_libs/tslibs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/lib.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/lib.o -Werror gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -Ipandas/_libs -I./pandas/_libs -I./pandas/_libs/tslibs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/src/parser/tokenizer.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/src/parser/tokenizer.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/lib.o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/src/parser/tokenizer.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/lib.cpython-36m-darwin.so building 'pandas._libs.missing' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -I./pandas/_libs/tslibs -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/missing.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/missing.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/missing.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/missing.cpython-36m-darwin.so building 'pandas._libs.parsers' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -Ipandas/_libs/src -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/parsers.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/parsers.o -Werror pandas/_libs/parsers.c:50827:52: error: code will never be executed [-Werror,-Wunreachable-code] } else if (PY_VERSION_HEX >= 0x030700A0 && flag == (METH_FASTCAL... ^~~~ pandas/_libs/parsers.c:50827:38: note: silence by adding parentheses to mark code as explicitly dead } else if (PY_VERSION_HEX >= 0x030700A0 && flag == (METH_FASTCAL... ^ / DISABLES CODE / ( ) 1 error generated. error: command 'gcc' failed with exit status 1
Comment From: cleconte987
@cleconte987 Thank you for the report!
As a quick-fix I would have remove the
-Werror"flag fromsetup.py, meaning turning this line:https://github.com/pandas-dev/pandas/blob/aee8e112c9faed31fd112072f497593b5e0fc010/setup.py#L436
from:
python extra_compile_args = ["-Werror"]to:
python extra_compile_args = []
Ok I will try!
Comment From: WillAyd
@cleconte987 can you post the output of pd.show_versions()?
Comment From: cleconte987
Actually the full full logs the first time I did it are these ones:
Compiling pandas/_libs/algos.pyx because it changed. Compiling pandas/_libs/groupby.pyx because it changed. Compiling pandas/_libs/hashing.pyx because it changed. Compiling pandas/_libs/hashtable.pyx because it changed. Compiling pandas/_libs/index.pyx because it changed. Compiling pandas/_libs/indexing.pyx because it changed. Compiling pandas/_libs/internals.pyx because it changed. Compiling pandas/_libs/interval.pyx because it changed. Compiling pandas/_libs/join.pyx because it changed. Compiling pandas/_libs/lib.pyx because it changed. Compiling pandas/_libs/missing.pyx because it changed. Compiling pandas/_libs/parsers.pyx because it changed. Compiling pandas/_libs/reduction.pyx because it changed. Compiling pandas/_libs/ops.pyx because it changed. Compiling pandas/_libs/ops_dispatch.pyx because it changed. Compiling pandas/_libs/properties.pyx because it changed. Compiling pandas/_libs/reshape.pyx because it changed. Compiling pandas/_libs/sparse.pyx because it changed. Compiling pandas/_libs/tslib.pyx because it changed. Compiling pandas/_libs/tslibs/c_timestamp.pyx because it changed. Compiling pandas/_libs/tslibs/ccalendar.pyx because it changed. Compiling pandas/_libs/tslibs/conversion.pyx because it changed. Compiling pandas/_libs/tslibs/fields.pyx because it changed. Compiling pandas/_libs/tslibs/frequencies.pyx because it changed. Compiling pandas/_libs/tslibs/nattype.pyx because it changed. Compiling pandas/_libs/tslibs/np_datetime.pyx because it changed. Compiling pandas/_libs/tslibs/offsets.pyx because it changed. Compiling pandas/_libs/tslibs/parsing.pyx because it changed. Compiling pandas/_libs/tslibs/period.pyx because it changed. Compiling pandas/_libs/tslibs/resolution.pyx because it changed. Compiling pandas/_libs/tslibs/strptime.pyx because it changed. Compiling pandas/_libs/tslibs/timedeltas.pyx because it changed. Compiling pandas/_libs/tslibs/timestamps.pyx because it changed. Compiling pandas/_libs/tslibs/timezones.pyx because it changed. Compiling pandas/_libs/tslibs/tzconversion.pyx because it changed. Compiling pandas/_libs/testing.pyx because it changed. Compiling pandas/_libs/window/aggregations.pyx because it changed. Compiling pandas/_libs/window/indexers.pyx because it changed. Compiling pandas/_libs/writers.pyx because it changed. Compiling pandas/io/sas/sas.pyx because it changed. [ 1/40] Cythonizing pandas/_libs/algos.pyx [ 2/40] Cythonizing pandas/_libs/groupby.pyx warning: pandas/_libs/groupby.pyx:1097:26: Unreachable code [ 3/40] Cythonizing pandas/_libs/hashing.pyx [ 4/40] Cythonizing pandas/_libs/hashtable.pyx [ 5/40] Cythonizing pandas/_libs/index.pyx [ 6/40] Cythonizing pandas/_libs/indexing.pyx [ 7/40] Cythonizing pandas/_libs/internals.pyx [ 8/40] Cythonizing pandas/_libs/interval.pyx [ 9/40] Cythonizing pandas/_libs/join.pyx [10/40] Cythonizing pandas/_libs/lib.pyx [11/40] Cythonizing pandas/_libs/missing.pyx [12/40] Cythonizing pandas/_libs/ops.pyx [13/40] Cythonizing pandas/_libs/ops_dispatch.pyx [14/40] Cythonizing pandas/_libs/parsers.pyx [15/40] Cythonizing pandas/_libs/properties.pyx [16/40] Cythonizing pandas/_libs/reduction.pyx [17/40] Cythonizing pandas/_libs/reshape.pyx [18/40] Cythonizing pandas/_libs/sparse.pyx [19/40] Cythonizing pandas/_libs/testing.pyx [20/40] Cythonizing pandas/_libs/tslib.pyx [21/40] Cythonizing pandas/_libs/tslibs/c_timestamp.pyx [22/40] Cythonizing pandas/_libs/tslibs/ccalendar.pyx [23/40] Cythonizing pandas/_libs/tslibs/conversion.pyx warning: pandas/_libs/tslibs/conversion.pyx:598:53: Buffer unpacking not optimized away. warning: pandas/_libs/tslibs/conversion.pyx:598:53: Buffer unpacking not optimized away. [24/40] Cythonizing pandas/_libs/tslibs/fields.pyx [25/40] Cythonizing pandas/_libs/tslibs/frequencies.pyx [26/40] Cythonizing pandas/_libs/tslibs/nattype.pyx [27/40] Cythonizing pandas/_libs/tslibs/np_datetime.pyx [28/40] Cythonizing pandas/_libs/tslibs/offsets.pyx [29/40] Cythonizing pandas/_libs/tslibs/parsing.pyx [30/40] Cythonizing pandas/_libs/tslibs/period.pyx [31/40] Cythonizing pandas/_libs/tslibs/resolution.pyx [32/40] Cythonizing pandas/_libs/tslibs/strptime.pyx [33/40] Cythonizing pandas/_libs/tslibs/timedeltas.pyx [34/40] Cythonizing pandas/_libs/tslibs/timestamps.pyx [35/40] Cythonizing pandas/_libs/tslibs/timezones.pyx [36/40] Cythonizing pandas/_libs/tslibs/tzconversion.pyx [37/40] Cythonizing pandas/_libs/window/aggregations.pyx [38/40] Cythonizing pandas/_libs/window/indexers.pyx [39/40] Cythonizing pandas/_libs/writers.pyx [40/40] Cythonizing pandas/io/sas/sas.pyx running build_ext building 'pandas._libs.algos' extension creating build creating build/temp.macosx-10.9-x86_64-3.6 creating build/temp.macosx-10.9-x86_64-3.6/pandas creating build/temp.macosx-10.9-x86_64-3.6/pandas/_libs gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/algos.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/algos.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/algos.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/algos.cpython-36m-darwin.so building 'pandas._libs.groupby' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/groupby.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/groupby.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/groupby.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/groupby.cpython-36m-darwin.so building 'pandas._libs.hashing' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/hashing.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/hashing.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/hashing.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/hashing.cpython-36m-darwin.so building 'pandas._libs.hashtable' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/hashtable.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/hashtable.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/hashtable.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/hashtable.cpython-36m-darwin.so building 'pandas._libs.index' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/index.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/index.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/index.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/index.cpython-36m-darwin.so building 'pandas._libs.indexing' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/indexing.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/indexing.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/indexing.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/indexing.cpython-36m-darwin.so building 'pandas._libs.internals' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/internals.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/internals.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/internals.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/internals.cpython-36m-darwin.so building 'pandas._libs.interval' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/interval.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/interval.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/interval.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/interval.cpython-36m-darwin.so building 'pandas._libs.join' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/join.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/join.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/join.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/join.cpython-36m-darwin.so building 'pandas._libs.lib' extension creating build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/src creating build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/src/parser gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -Ipandas/_libs -I./pandas/_libs/tslibs -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/lib.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/lib.o -Werror gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -Ipandas/_libs -I./pandas/_libs/tslibs -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/src/parser/tokenizer.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/src/parser/tokenizer.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/lib.o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/src/parser/tokenizer.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/lib.cpython-36m-darwin.so building 'pandas._libs.missing' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs/tslibs -I./pandas/_libs -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/missing.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/missing.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/missing.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/missing.cpython-36m-darwin.so building 'pandas._libs.parsers' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -Ipandas/_libs/src -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/parsers.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/parsers.o -Werror pandas/_libs/parsers.c:50827:52: error: code will never be executed [-Werror,-Wunreachable-code] } else if (PY_VERSION_HEX >= 0x030700A0 && flag == (METH_FASTCALL | METH_KEYWORDS)) { ^~~~ pandas/_libs/parsers.c:50827:38: note: silence by adding parentheses to mark code as explicitly dead } else if (PY_VERSION_HEX >= 0x030700A0 && flag == (METH_FASTCALL | METH_KEYWORDS)) { ^ / DISABLES CODE / ( ) 1 error generated. error: command 'gcc' failed with exit status 1
Notice the warning: Unreachable code for pandas/_libs/groupby.pyx
pandas is not installed yet so I cannot do pd.show_versions(). Or pandas is installed but I cannot import it from source as C extensions are not built:
ImportError: C extension: No module named 'pandas._libs.tslibs.conversion' not built. If you want to import pandas from the source directory, you may need to run 'python setup.py build_ext --inplace --force' to build the C extensions first.
Comment From: WillAyd
Good point. Can you share your Cython Version and C compiler? Also can you attach the parsers.c file where the warning cones from?
Sent from my iPhone
On Mar 21, 2020, at 4:29 PM, cleconte987 notifications@github.com wrote:
Actually the full full logs the first time I did it are these ones:
Compiling pandas/_libs/algos.pyx because it changed. Compiling pandas/_libs/groupby.pyx because it changed. Compiling pandas/_libs/hashing.pyx because it changed. Compiling pandas/_libs/hashtable.pyx because it changed. Compiling pandas/_libs/index.pyx because it changed. Compiling pandas/_libs/indexing.pyx because it changed. Compiling pandas/_libs/internals.pyx because it changed. Compiling pandas/_libs/interval.pyx because it changed. Compiling pandas/_libs/join.pyx because it changed. Compiling pandas/_libs/lib.pyx because it changed. Compiling pandas/_libs/missing.pyx because it changed. Compiling pandas/_libs/parsers.pyx because it changed. Compiling pandas/_libs/reduction.pyx because it changed. Compiling pandas/_libs/ops.pyx because it changed. Compiling pandas/_libs/ops_dispatch.pyx because it changed. Compiling pandas/_libs/properties.pyx because it changed. Compiling pandas/_libs/reshape.pyx because it changed. Compiling pandas/_libs/sparse.pyx because it changed. Compiling pandas/_libs/tslib.pyx because it changed. Compiling pandas/_libs/tslibs/c_timestamp.pyx because it changed. Compiling pandas/_libs/tslibs/ccalendar.pyx because it changed. Compiling pandas/_libs/tslibs/conversion.pyx because it changed. Compiling pandas/_libs/tslibs/fields.pyx because it changed. Compiling pandas/_libs/tslibs/frequencies.pyx because it changed. Compiling pandas/_libs/tslibs/nattype.pyx because it changed. Compiling pandas/_libs/tslibs/np_datetime.pyx because it changed. Compiling pandas/_libs/tslibs/offsets.pyx because it changed. Compiling pandas/_libs/tslibs/parsing.pyx because it changed. Compiling pandas/_libs/tslibs/period.pyx because it changed. Compiling pandas/_libs/tslibs/resolution.pyx because it changed. Compiling pandas/_libs/tslibs/strptime.pyx because it changed. Compiling pandas/_libs/tslibs/timedeltas.pyx because it changed. Compiling pandas/_libs/tslibs/timestamps.pyx because it changed. Compiling pandas/_libs/tslibs/timezones.pyx because it changed. Compiling pandas/_libs/tslibs/tzconversion.pyx because it changed. Compiling pandas/_libs/testing.pyx because it changed. Compiling pandas/_libs/window/aggregations.pyx because it changed. Compiling pandas/_libs/window/indexers.pyx because it changed. Compiling pandas/_libs/writers.pyx because it changed. Compiling pandas/io/sas/sas.pyx because it changed. [ 1/40] Cythonizing pandas/_libs/algos.pyx [ 2/40] Cythonizing pandas/_libs/groupby.pyx warning: pandas/_libs/groupby.pyx:1097:26: Unreachable code [ 3/40] Cythonizing pandas/_libs/hashing.pyx [ 4/40] Cythonizing pandas/_libs/hashtable.pyx [ 5/40] Cythonizing pandas/_libs/index.pyx [ 6/40] Cythonizing pandas/_libs/indexing.pyx [ 7/40] Cythonizing pandas/_libs/internals.pyx [ 8/40] Cythonizing pandas/_libs/interval.pyx [ 9/40] Cythonizing pandas/_libs/join.pyx [10/40] Cythonizing pandas/_libs/lib.pyx [11/40] Cythonizing pandas/_libs/missing.pyx [12/40] Cythonizing pandas/_libs/ops.pyx [13/40] Cythonizing pandas/_libs/ops_dispatch.pyx [14/40] Cythonizing pandas/_libs/parsers.pyx [15/40] Cythonizing pandas/_libs/properties.pyx [16/40] Cythonizing pandas/_libs/reduction.pyx [17/40] Cythonizing pandas/_libs/reshape.pyx [18/40] Cythonizing pandas/_libs/sparse.pyx [19/40] Cythonizing pandas/_libs/testing.pyx [20/40] Cythonizing pandas/_libs/tslib.pyx [21/40] Cythonizing pandas/_libs/tslibs/c_timestamp.pyx [22/40] Cythonizing pandas/_libs/tslibs/ccalendar.pyx [23/40] Cythonizing pandas/_libs/tslibs/conversion.pyx warning: pandas/_libs/tslibs/conversion.pyx:598:53: Buffer unpacking not optimized away. warning: pandas/_libs/tslibs/conversion.pyx:598:53: Buffer unpacking not optimized away. [24/40] Cythonizing pandas/_libs/tslibs/fields.pyx [25/40] Cythonizing pandas/_libs/tslibs/frequencies.pyx [26/40] Cythonizing pandas/_libs/tslibs/nattype.pyx [27/40] Cythonizing pandas/_libs/tslibs/np_datetime.pyx [28/40] Cythonizing pandas/_libs/tslibs/offsets.pyx [29/40] Cythonizing pandas/_libs/tslibs/parsing.pyx [30/40] Cythonizing pandas/_libs/tslibs/period.pyx [31/40] Cythonizing pandas/_libs/tslibs/resolution.pyx [32/40] Cythonizing pandas/_libs/tslibs/strptime.pyx [33/40] Cythonizing pandas/_libs/tslibs/timedeltas.pyx [34/40] Cythonizing pandas/_libs/tslibs/timestamps.pyx [35/40] Cythonizing pandas/_libs/tslibs/timezones.pyx [36/40] Cythonizing pandas/_libs/tslibs/tzconversion.pyx [37/40] Cythonizing pandas/_libs/window/aggregations.pyx [38/40] Cythonizing pandas/_libs/window/indexers.pyx [39/40] Cythonizing pandas/_libs/writers.pyx [40/40] Cythonizing pandas/io/sas/sas.pyx running build_ext building 'pandas._libs.algos' extension creating build creating build/temp.macosx-10.9-x86_64-3.6 creating build/temp.macosx-10.9-x86_64-3.6/pandas creating build/temp.macosx-10.9-x86_64-3.6/pandas/_libs gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/algos.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/algos.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/algos.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/algos.cpython-36m-darwin.so building 'pandas._libs.groupby' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/groupby.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/groupby.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/groupby.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/groupby.cpython-36m-darwin.so building 'pandas._libs.hashing' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/hashing.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/hashing.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/hashing.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/hashing.cpython-36m-darwin.so building 'pandas._libs.hashtable' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/hashtable.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/hashtable.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/hashtable.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/hashtable.cpython-36m-darwin.so building 'pandas._libs.index' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/index.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/index.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/index.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/index.cpython-36m-darwin.so building 'pandas._libs.indexing' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/indexing.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/indexing.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/indexing.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/indexing.cpython-36m-darwin.so building 'pandas._libs.internals' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/internals.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/internals.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/internals.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/internals.cpython-36m-darwin.so building 'pandas._libs.interval' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/interval.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/interval.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/interval.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/interval.cpython-36m-darwin.so building 'pandas._libs.join' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/join.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/join.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/join.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/join.cpython-36m-darwin.so building 'pandas._libs.lib' extension creating build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/src creating build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/src/parser gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -Ipandas/_libs -I./pandas/_libs/tslibs -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/lib.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/lib.o -Werror gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -Ipandas/_libs -I./pandas/_libs/tslibs -I./pandas/_libs -Ipandas/_libs/src/klib -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/src/parser/tokenizer.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/src/parser/tokenizer.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/lib.o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/src/parser/tokenizer.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/lib.cpython-36m-darwin.so building 'pandas._libs.missing' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs/tslibs -I./pandas/_libs -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/missing.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/missing.o -Werror gcc -bundle -undefined dynamic_lookup -arch x86_64 -g build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/missing.o -o /Users/clement/Desktop/Contributing_to_pandas/pandas/_libs/missing.cpython-36m-darwin.so building 'pandas._libs.parsers' extension gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -arch x86_64 -g -DNPY_NO_DEPRECATED_API=0 -I./pandas/_libs -Ipandas/_libs/src/klib -Ipandas/_libs/src -I/Users/clement/Desktop/Contributing_to_pandas/lib/python3.6/site-packages/numpy/core/include -I/Users/clement/Desktop/Contributing_to_pandas/include -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c pandas/_libs/parsers.c -o build/temp.macosx-10.9-x86_64-3.6/pandas/_libs/parsers.o -Werror pandas/_libs/parsers.c:50827:52: error: code will never be executed [-Werror,-Wunreachable-code] } else if (PY_VERSION_HEX >= 0x030700A0 && flag == (METH_FASTCALL | METH_KEYWORDS)) { ^~~~ pandas/_libs/parsers.c:50827:38: note: silence by adding parentheses to mark code as explicitly dead } else if (PY_VERSION_HEX >= 0x030700A0 && flag == (METH_FASTCALL | METH_KEYWORDS)) { ^ / DISABLES CODE / ( ) 1 error generated. error: command 'gcc' failed with exit status 1
Notice the warning: Unreachable code for pandas/_libs/groupby.pyx
pandas is not installed yet so I cannot do pd.show_versions()
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Comment From: cleconte987
Yes the Cython version is 0.29.15 C Compiler (not sure which part is important so I put everything): [GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.57)] How can I attach the parsers.c file?
Here is a snippet containing line 50827:
`#if CYTHON_COMPILING_IN_CPYTHON static CYTHON_INLINE PyObject __Pyx_CallUnboundCMethod1(__Pyx_CachedCFunction cfunc, PyObject self, PyObject arg) { if (likely(cfunc->func)) { int flag = cfunc->flag; if (flag == METH_O) { return ((cfunc->func))(self, arg); } else if (PY_VERSION_HEX >= 0x030600B1 && flag == METH_FASTCALL) { if (PY_VERSION_HEX >= 0x030700A0) { return ((__Pyx_PyCFunctionFast)(void)(PyCFunction)cfunc->func)(self, &arg, 1); } else { return ((__Pyx_PyCFunctionFastWithKeywords)(void)(PyCFunction)cfunc->func)(self, &arg, 1, NULL); } } else if (PY_VERSION_HEX >= 0x030700A0 && flag == (METH_FASTCALL | METH_KEYWORDS)) { return ((__Pyx_PyCFunctionFastWithKeywords)(void*)(PyCFunction)cfunc->func)(self, &arg, 1, NULL); } } return __Pyx__CallUnboundCMethod1(cfunc, self, arg); }
endif`
Comment From: joooeey
ImportError: C extension: No module named 'pandas._libs.tslibs.conversion' not built. If you want to import pandas from the source directory, you may need to run 'python setup.py build_ext --inplace --force' to build the C extensions first.
In #34280 I solved a similar error by re-installing the C-compiler and then running
python setup.py build_ext --inplace --force
Maybe that works here too?
Comment From: cleconte987
I used the turn-around proposed by @MomIsBestFriend to build pandas.
Comment From: Chaz6
I just ran into this with Clang 10 on CentOS 7.
build/temp.linux-x86_64-3.9/pandas/_libs/algos.o -Werror
pandas/_libs/algos.c:81785:3: error: code will never be executed [-Werror,-Wunreachable-code]
__Pyx_SafeReleaseBuffer(&__pyx_pybuffernd_arr.rcbuffer->pybuffer);
^~~~~~~~~~~~~~~~~~~~~~~
pandas/_libs/algos.c:83402:3: error: code will never be executed [-Werror,-Wunreachable-code]
__Pyx_SafeReleaseBuffer(&__pyx_pybuffernd_arr.rcbuffer->pybuffer);
^~~~~~~~~~~~~~~~~~~~~~~
pandas/_libs/algos.c:84302:3: error: code will never be executed [-Werror,-Wunreachable-code]
__Pyx_SafeReleaseBuffer(&__pyx_pybuffernd_arr.rcbuffer->pybuffer);
^~~~~~~~~~~~~~~~~~~~~~~
pandas/_libs/algos.c:85202:3: error: code will never be executed [-Werror,-Wunreachable-code]
__Pyx_SafeReleaseBuffer(&__pyx_pybuffernd_arr.rcbuffer->pybuffer);
^~~~~~~~~~~~~~~~~~~~~~~
pandas/_libs/algos.c:85385:3: error: code will never be executed [-Werror,-Wunreachable-code]
__Pyx_SafeReleaseBuffer(&__pyx_pybuffernd_arr.rcbuffer->pybuffer);
^~~~~~~~~~~~~~~~~~~~~~~
pandas/_libs/algos.c:86285:3: error: code will never be executed [-Werror,-Wunreachable-code]
__Pyx_SafeReleaseBuffer(&__pyx_pybuffernd_arr.rcbuffer->pybuffer);
^~~~~~~~~~~~~~~~~~~~~~~
6 errors generated.
error: command '/home/chaz/.local/bin/clang' failed with exit code 1
Comment From: anzhi0708
Same error on Termux (Android Linux simulator). ''' [ 2/40] Cythonizing pandas/_libs/groupby.pyx warning: pandas/_libs/groupby.pyx: 1135: 26: Unreachable code ''' and lots of 'code will never be executed' error. Fails with exit code 1.
Comment From: mroeschke
Since this is an older version being built that we no longer support, closing. But can reopen if something similar is found in the future