From f1d77ccda8ccbb36eda42f7035fd5645f33ec7bb Mon Sep 17 00:00:00 2001 From: mapler Date: Sun, 11 Oct 2015 18:49:33 +0900 Subject: [PATCH] Fix `activate_this.py` does not exist, #406 --- pymode/virtualenv.py | 53 +++++++++++++++++++++++++++++++++++--------- 1 file changed, 43 insertions(+), 10 deletions(-) diff --git a/pymode/virtualenv.py b/pymode/virtualenv.py index 08194b20..063a1c71 100644 --- a/pymode/virtualenv.py +++ b/pymode/virtualenv.py @@ -1,6 +1,8 @@ """ Support virtualenv in pymode. """ -import os.path +import os +import sys +import site from .environment import env @@ -25,13 +27,44 @@ def enable_virtualenv(): activate_this = os.path.join( os.path.join(path, 'Scripts'), 'activate_this.py') - f = open(activate_this) try: - source = f.read() - exec(compile( # noqa - source, activate_this, 'exec'), dict(__file__=activate_this)) - env.message('Activate virtualenv: ' + path) - env.let('g:pymode_virtualenv_enabled', path) - return True - finally: - f.close() + with open(activate_this) as f: + source = f.read() + exec(compile( # noqa + source, activate_this, 'exec'), dict(__file__=activate_this)) + except IOError: + _activate_env_from_path(path) + + env.message('Activate virtualenv: ' + path) + env.let('g:pymode_virtualenv_enabled', path) + return True + + +def _activate_env_from_path(env_path): + """ Fix when `activate_this.py` does not exist. + + For Python 3.3 and newer, a new command-line tool `pyvenv` create venv + will not provide 'activate_this.py'. + """ + prev_sys_path = list(sys.path) + + if sys.platform == 'win32': + site_packages_paths = [os.path.join(env_path, 'Lib', 'site-packages')] + else: + lib_path = os.path.join(env_path, 'lib') + site_packages_paths = [os.path.join(lib_path, lib, 'site-packages') + for lib in os.listdir(lib_path)] + for site_packages_path in site_packages_paths: + site.addsitedir(site_packages_path) + + sys.real_prefix = sys.prefix + sys.prefix = env_path + sys.exec_prefix = env_path + + # Move the added items to the front of the path: + new_sys_path = [] + for item in list(sys.path): + if item not in prev_sys_path: + new_sys_path.append(item) + sys.path.remove(item) + sys.path[:0] = new_sys_path pFad - Phonifier reborn

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