Created
December 6, 2012 02:00
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Initialize pywin32 in a new virtualenv on Windows
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| """Fix a Windows virtualenv by bringing over pywin32 and friends.""" | |
| # Based on code found in fablib (https://github.com/srid/fablib/), specifically | |
| # https://github.com/srid/fablib/blob/master/venv.py. | |
| import sys | |
| if sys.platform != 'win32': | |
| print("%s is only available on Windows." % sys.argv[0]) | |
| sys.exit(0) | |
| import glob | |
| import os | |
| import shutil | |
| from contextlib import contextmanager | |
| from fabric.api import hide, local, puts | |
| def copy_pywin32_to_virtualenv(python, venv_root): | |
| get_sp = '"import distutils.sysconfig as sc; print(sc.get_python_lib())"' | |
| with hide('everything'): | |
| sp = local(' '.join([python, '-c', get_sp]), capture=True).strip() | |
| pywin32_pth = os.path.join(sp, 'pywin32.pth') | |
| venv_sp = os.path.join(venv_root, 'Lib', 'site-packages') | |
| if not os.path.exists(venv_sp): | |
| os.makedirs(venv_sp) | |
| if os.path.exists(pywin32_pth): | |
| target = os.path.join(venv_sp, 'pywin32.pth') | |
| with msg("Importing global PyWin32 package to '%s'" % venv_sp): | |
| shutil.copyfile(pywin32_pth, target) | |
| # Make all paths in the virtualenv version absolute. | |
| patched_pth = [] | |
| for line in open(target, 'r').readlines(): | |
| if line.strip() and not line.startswith('#'): | |
| patched_pth.append(os.path.join(sp, line)) | |
| else: | |
| patched_pth.append(line) | |
| with open(target, 'w') as f: | |
| f.writelines(patched_pth) | |
| # Copy the remaining PyWin32 packages, win32com, etc. | |
| sources = glob.glob(os.path.join(sp, 'win32*')) | |
| sources.append(os.path.join(sp, 'pythoncom.py')) | |
| for source in sources: | |
| target = os.path.join(venv_sp, os.path.basename(source)) | |
| with msg("Copying '%s' to '%s'" % (source, target)): | |
| if os.path.isfile(source): | |
| shutil.copyfile(source, target) | |
| else: | |
| # From fablib: copytree..mkdir will fail if `target` exists; | |
| # workaround that | |
| if os.path.exists(target): | |
| shutil.rmtree(target) | |
| shutil.copytree(source, target) | |
| @contextmanager | |
| def msg(txt): | |
| puts(txt + '...', end='', flush=True) | |
| with hide('everything'): | |
| yield | |
| puts('done.', show_prefix=False, flush=True) | |
| if __name__ == '__main__': | |
| if len(sys.argv) != 2: | |
| print("Usage %s <path to virtualenv>" % sys.argv[0]) | |
| sys.exit(1) | |
| venv_root = os.path.abspath(sys.argv[1]) | |
| if not os.path.exists(venv_root) or not os.path.isdir(venv_root): | |
| print("Path '%s' is not a directory!" % venv_root) | |
| sys.exit(1) | |
| # Assume that the executable running this script is the system Python. | |
| python = sys.executable | |
| copy_pywin32_to_virtualenv(python, venv_root) |
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| #!/bin/bash | |
| # This hook is run after a new virtualenv is created and before it is activated. | |
| envname=$1 | |
| # On Windows, we need to import PyWin32 into the new virtualenv, otherwise packages that depend on it will break. | |
| if [[ "$OS" == "Windows_NT" && -f "$HOME/bin/fix-windows-virtualenv.py" ]]; then | |
| python "$HOME/bin/fix-windows-virtualenv.py" "$WORKON_HOME/$envname" | |
| fi |
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