Python module install: specifying location of external library dependencies Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern) Data science time! April 2019 and salary with experience Should we burninate the [wrap] tag? The Ask Question Wizard is Live!Calling an external command in PythonHow can I get a list of locally installed Python modules?pip install mysql-python fails with EnvironmentError: mysql_config not foundHow to install psycopg2 with “pip” on Python?python pip specify a library directory and an include directoryPython unable to locate gmpy libraryHow do I install a Python package with a .whl file?python install module apiclientWhy are different python modules installed in different locations?pip not installing all dependencies in setup.py
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Python module install: specifying location of external library dependencies
Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)
Data science time! April 2019 and salary with experience
Should we burninate the [wrap] tag?
The Ask Question Wizard is Live!Calling an external command in PythonHow can I get a list of locally installed Python modules?pip install mysql-python fails with EnvironmentError: mysql_config not foundHow to install psycopg2 with “pip” on Python?python pip specify a library directory and an include directoryPython unable to locate gmpy libraryHow do I install a Python package with a .whl file?python install module apiclientWhy are different python modules installed in different locations?pip not installing all dependencies in setup.py
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The pip tool makes python module install a breeze -- for the most part. But when the module requires some external C libraries that are not found in "standard locations", it can cause problem. Case in point: I was trying to install gmpy2 python module, and it needs to have access to gmp, mpfr, and mpc libraries. On the system I'm using (Linux HPC, running RHEL 6.9), the system-wide libraries are very old. The HPC system admin provides more up-to-date libraries but not in /usr/lib or /usr/local/lib. My question is: can we still use pip to build binary parts of the Python module? How to specify the custom include & library files location? I was forced to get back to python setup.py approach: first using build_ext subcommand, then invoking the install subcommand to finish the install. This is workable, but rather messy.
python pip
asked Mar 8 at 17:43
Wirawan PurwantoWirawan Purwanto
1,21111420
add a comment |
The pip tool makes python module install a breeze -- for the most part. But when the module requires some external C libraries that are not found in "standard locations", it can cause problem. Case in point: I was trying to install gmpy2 python module, and it needs to have access to gmp, mpfr, and mpc libraries. On the system I'm using (Linux HPC, running RHEL 6.9), the system-wide libraries are very old. The HPC system admin provides more up-to-date libraries but not in /usr/lib or /usr/local/lib. My question is: can we still use pip to build binary parts of the Python module? How to specify the custom include & library files location? I was forced to get back to python setup.py approach: first using build_ext subcommand, then invoking the install subcommand to finish the install. This is workable, but rather messy.
python pip
asked Mar 8 at 17:43
Wirawan PurwantoWirawan Purwanto
1,21111420
I do not know, what locations Python is looking by default, but what if you have those paths included in bash variable LD_LIBRARY_PATH? Aren't the programs usually searching for libraries using those locations as well?
– msi_gerva
Mar 8 at 21:18
Yes,LD_LIBRARY_PATHis searched for running the library. But for building, one has to useLIBRARY_PATH(at least for GNU toolchain?). For the compilation phase though, there is no such an alternative way of specifying path, AFAIK, other than the-Iflags. Then maybe one has to useCFLAGSandLDFLAGSto begin with.
– Wirawan Purwanto
Mar 10 at 21:40
add a comment |
The pip tool makes python module install a breeze -- for the most part. But when the module requires some external C libraries that are not found in "standard locations", it can cause problem. Case in point: I was trying to install gmpy2 python module, and it needs to have access to gmp, mpfr, and mpc libraries. On the system I'm using (Linux HPC, running RHEL 6.9), the system-wide libraries are very old. The HPC system admin provides more up-to-date libraries but not in /usr/lib or /usr/local/lib. My question is: can we still use pip to build binary parts of the Python module? How to specify the custom include & library files location? I was forced to get back to python setup.py approach: first using build_ext subcommand, then invoking the install subcommand to finish the install. This is workable, but rather messy.
python pip
asked Mar 8 at 17:43
Wirawan PurwantoWirawan Purwanto
1,21111420
The pip tool makes python module install a breeze -- for the most part. But when the module requires some external C libraries that are not found in "standard locations", it can cause problem. Case in point: I was trying to install gmpy2 python module, and it needs to have access to gmp, mpfr, and mpc libraries. On the system I'm using (Linux HPC, running RHEL 6.9), the system-wide libraries are very old. The HPC system admin provides more up-to-date libraries but not in /usr/lib or /usr/local/lib. My question is: can we still use pip to build binary parts of the Python module? How to specify the custom include & library files location? I was forced to get back to python setup.py approach: first using build_ext subcommand, then invoking the install subcommand to finish the install. This is workable, but rather messy.
python pip
python pip
asked Mar 8 at 17:43
Wirawan PurwantoWirawan Purwanto
1,21111420
asked Mar 8 at 17:43
Wirawan PurwantoWirawan Purwanto
1,21111420
asked Mar 8 at 17:43
Wirawan PurwantoWirawan Purwanto
1,21111420
asked Mar 8 at 17:43
Wirawan PurwantoWirawan Purwanto
1,21111420
asked Mar 8 at 17:43
Wirawan PurwantoWirawan Purwanto
1,21111420
1,21111420
I do not know, what locations Python is looking by default, but what if you have those paths included in bash variable LD_LIBRARY_PATH? Aren't the programs usually searching for libraries using those locations as well?
– msi_gerva
Mar 8 at 21:18
Yes,LD_LIBRARY_PATHis searched for running the library. But for building, one has to useLIBRARY_PATH(at least for GNU toolchain?). For the compilation phase though, there is no such an alternative way of specifying path, AFAIK, other than the-Iflags. Then maybe one has to useCFLAGSandLDFLAGSto begin with.
– Wirawan Purwanto
Mar 10 at 21:40
add a comment |
I do not know, what locations Python is looking by default, but what if you have those paths included in bash variable LD_LIBRARY_PATH? Aren't the programs usually searching for libraries using those locations as well?
– msi_gerva
Mar 8 at 21:18
Yes,LD_LIBRARY_PATHis searched for running the library. But for building, one has to useLIBRARY_PATH(at least for GNU toolchain?). For the compilation phase though, there is no such an alternative way of specifying path, AFAIK, other than the-Iflags. Then maybe one has to useCFLAGSandLDFLAGSto begin with.
– Wirawan Purwanto
Mar 10 at 21:40
I do not know, what locations Python is looking by default, but what if you have those paths included in bash variable LD_LIBRARY_PATH? Aren't the programs usually searching for libraries using those locations as well?
– msi_gerva
Mar 8 at 21:18
I do not know, what locations Python is looking by default, but what if you have those paths included in bash variable LD_LIBRARY_PATH? Aren't the programs usually searching for libraries using those locations as well?
– msi_gerva
Mar 8 at 21:18
Yes,
LD_LIBRARY_PATH is searched for running the library. But for building, one has to use LIBRARY_PATH (at least for GNU toolchain?). For the compilation phase though, there is no such an alternative way of specifying path, AFAIK, other than the -I flags. Then maybe one has to use CFLAGS and LDFLAGS to begin with.– Wirawan Purwanto
Mar 10 at 21:40
Yes,
LD_LIBRARY_PATH is searched for running the library. But for building, one has to use LIBRARY_PATH (at least for GNU toolchain?). For the compilation phase though, there is no such an alternative way of specifying path, AFAIK, other than the -I flags. Then maybe one has to use CFLAGS and LDFLAGS to begin with.– Wirawan Purwanto
Mar 10 at 21:40
add a comment |
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I do not know, what locations Python is looking by default, but what if you have those paths included in bash variable LD_LIBRARY_PATH? Aren't the programs usually searching for libraries using those locations as well?
– msi_gerva
Mar 8 at 21:18
Yes,
LD_LIBRARY_PATHis searched for running the library. But for building, one has to useLIBRARY_PATH(at least for GNU toolchain?). For the compilation phase though, there is no such an alternative way of specifying path, AFAIK, other than the-Iflags. Then maybe one has to useCFLAGSandLDFLAGSto begin with.– Wirawan Purwanto
Mar 10 at 21:40