Problem in installing PROJ in python environment

Question

Cannot install PROJ

>>pip install git+https://github.com/OSGeo/PROJ.git

Collecting git+https://github.com/OSGeo/PROJ.git
  Cloning https://github.com/OSGeo/PROJ.git to c:\users\lenovo\appdata\local\temp\pip-req-build-jwr6msmg
    ERROR: Command errored out with exit status 1:
     command: 'c:\python37\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\lenovo\\AppData\\Local\\Temp\\pip-req-build-jwr6msmg\\setup.py'"'"'; __file__='"'"'C:\\Users\\lenovo\\AppData\\Local\\Temp\\pip-req-build-jwr6msmg\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base 'C:\Users\lenovo\AppData\Local\Temp\pip-pip-egg-info-w2azftsy'
         cwd: C:\Users\lenovo\AppData\Local\Temp\pip-req-build-jwr6msmg\
    Complete output (5 lines):
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "c:\python37\lib\tokenize.py", line 447, in open
        buffer = _builtin_open(filename, 'rb')
    FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\lenovo\\AppData\\Local\\Temp\\pip-req-build-jwr6msmg\\setup.py'
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

I tried installing it manually using the source file, But it is also giving the following error

>>> pip install proj-7.1.1.tar.gz

Processing e:\wihg\15-09-2020\surfacewave tomography\iris_data\test\proj-7.1.1.tar.gz
    ERROR: Command errored out with exit status 1:
     command: 'c:\python37\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\lenovo\\AppData\\Local\\Temp\\pip-req-build-3y5iufx3\\setup.py'"'"'; __file__='"'"'C:\\Users\\lenovo\\AppData\\Local\\Temp\\pip-req-build-3y5iufx3\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base 'C:\Users\lenovo\AppData\Local\Temp\pip-pip-egg-info-2t2y4p78'
         cwd: C:\Users\lenovo\AppData\Local\Temp\pip-req-build-3y5iufx3\
    Complete output (5 lines):
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "c:\python37\lib\tokenize.py", line 447, in open
        buffer = _builtin_open(filename, 'rb')
    FileNotFoundError: [Errno 2] No such file or directory: 'C:\\Users\\lenovo\\AppData\\Local\\Temp\\pip-req-build-3y5iufx3\\setup.py'
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

How to solve this error? (Have to install it in Non-conda environment)

Answer 1

PROJ is a C library, not a Python package, so you cannot use pip to install it.

If you just want to work with PROJ from Python, you can use PyPROJ and install it with pip install pyproj . On MacOS, Linux, and Windows this will give you pre-built wheels that already include PROJ.

If you're trying to install it for CartoPy (based on your tags) you'll need to install PROJ separately following their install instructions .