Virtualenv: Virtualenv 20.0.0b1 错误为 brew python2 创建 venv

创建于 2020-01-28  ·  10评论  ·  资料来源: pypa/virtualenv

在我的 Mac 上使用 Homebrew Python2（和 3）：

$ ls -al $(which python2)
lrwxr-xr-x  1 brettmz  admin  37 Nov 15 12:04 /usr/local/bin/python2 -> ../Cellar/python@2/2.7.17/bin/python2

我得到：

$ virtualenv --python /usr/local/bin/python2 py2env
Traceback (most recent call last):
  File "/Users/brettmz/Library/Python/3.7/bin/virtualenv", line 8, in <module>
    sys.exit(run())
  File "/Users/brettmz/Library/Python/3.7/lib/python/site-packages/virtualenv/__main__.py", line 16, in run
    run_via_cli(args)
  File "/Users/brettmz/Library/Python/3.7/lib/python/site-packages/virtualenv/run/__init__.py", line 21, in run_via_cli
    session = session_via_cli(args)
  File "/Users/brettmz/Library/Python/3.7/lib/python/site-packages/virtualenv/run/__init__.py", line 33, in session_via_cli
    raise RuntimeError("failed to find interpreter for {}".format(discover))
RuntimeError: failed to find interpreter for Builtin discover of python_spec='/usr/local/bin/python2'

对于当前稳定的 virtualenv，这可以正常工作。 这是故意的吗？

picture matthew-brett

最有用的评论

使用未修改的测试版，这有效：

virtualenv --python=/usr/local/bin/python2.7 foo

要么与您当前的discovery分支一起使用。

感谢您的快速回复。

picture matthew-brett 于 2020-01-28
🎉2

所有10条评论

@matthew-brett 我需要验证，感谢您提醒我注意这一点。

gaborbernat picture gaborbernat 于 2020-01-28

嗯，我无法重现这个🤔你能用-vvv发布输出吗？

gaborbernat picture gaborbernat 于 2020-01-28

当然：

89 setup logging to NOTSET [DEBUG report:43]
161 find interpreter for spec PythonSpec(str_spec=/usr/local/bin/python2, path=/usr/local/bin/python2) [INFO builtin:44]
161 proposed PythonInfo(spec=CPython3.7.5.final.0-64, exe=/Library/Frameworks/Python.framework/Versions/3.7/bin/python3.7, platform=darwin, version='3.7.5 (v3.7.5:5c02a39a0b, Oct 14 2019, 19:07:34) \n[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)]', encoding_fs_io=utf-8-UTF-8) [INFO builtin:48]
162 Attempting to acquire lock 4568075728 on /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/480187601bdac08cce463831e50aade5e1a71f4acabcd8828b0a0dd3276fab64.lock [DEBUG filelock:270]
162 Lock 4568075728 acquired on /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/480187601bdac08cce463831e50aade5e1a71f4acabcd8828b0a0dd3276fab64.lock [INFO filelock:274]
163 get PythonInfo from /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/480187601bdac08cce463831e50aade5e1a71f4acabcd8828b0a0dd3276fab64.json for /usr/local/bin/python2 [DEBUG cached_py_info:67]
163 Attempting to release lock 4568075728 on /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/480187601bdac08cce463831e50aade5e1a71f4acabcd8828b0a0dd3276fab64.lock [DEBUG filelock:315]
163 Lock 4568075728 released on /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/480187601bdac08cce463831e50aade5e1a71f4acabcd8828b0a0dd3276fab64.lock [INFO filelock:318]
163 proposed PythonInfo(spec=CPython2.7.17.final.0-64, exe=/usr/local/bin/python2.7, original=/usr/local/opt/python@2/bin/python2.7, platform=darwin, version='2.7.17 (default, Oct 24 2019, 12:57:38) \n[GCC 4.2.1 Compatible Apple LLVM 11.0.0 (clang-1100.0.33.8)]', encoding_fs_io=utf-8-None) [INFO builtin:48]
164 discover PATH[0]=/usr/local/opt/ruby/bin [DEBUG builtin:75]
164 discover PATH[1]=/Library/Frameworks/Python.framework/Versions/3.7/bin [DEBUG builtin:75]
164 discover PATH[2]=/Users/brettmz/usr/local/fsl/bin [DEBUG builtin:75]
165 discover PATH[3]=/Users/brettmz/Library/Python/3.7/bin [DEBUG builtin:75]
165 Attempting to acquire lock 4564090384 on /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/70b38d7a306a849643e446cd70466270a13445e5987dfa1344ef2b127438fa4d.lock [DEBUG filelock:270]
165 Lock 4564090384 acquired on /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/70b38d7a306a849643e446cd70466270a13445e5987dfa1344ef2b127438fa4d.lock [INFO filelock:274]
166 get PythonInfo from /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/70b38d7a306a849643e446cd70466270a13445e5987dfa1344ef2b127438fa4d.json for /Users/brettmz/Library/Python/3.7/bin/python [DEBUG cached_py_info:67]
166 Attempting to release lock 4564090384 on /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/70b38d7a306a849643e446cd70466270a13445e5987dfa1344ef2b127438fa4d.lock [DEBUG filelock:315]
166 Lock 4564090384 released on /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/70b38d7a306a849643e446cd70466270a13445e5987dfa1344ef2b127438fa4d.lock [INFO filelock:318]
166 proposed PythonInfo(spec=CPython3.7.5.final.0-64, exe=/Users/brettmz/Library/Python/3.7/bin/python, platform=darwin, version='3.7.5 (v3.7.5:5c02a39a0b, Oct 14 2019, 19:07:34) \n[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)]', encoding_fs_io=utf-8-UTF-8) [INFO builtin:48]
167 discover PATH[4]=/usr/sbin [DEBUG builtin:75]
167 discover PATH[5]=/sbin [DEBUG builtin:75]
167 discover PATH[6]=/Users/brettmz/usr/bin [DEBUG builtin:75]
167 discover PATH[7]=/usr/local/bin [DEBUG builtin:75]
168 discover PATH[8]=/usr/bin [DEBUG builtin:75]
168 Attempting to acquire lock 4564099344 on /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/aaafe28a6254581d4f0ccfa0911e2de9e463b78fe3b32b118542e908e534a6ec.lock [DEBUG filelock:270]
168 Lock 4564099344 acquired on /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/aaafe28a6254581d4f0ccfa0911e2de9e463b78fe3b32b118542e908e534a6ec.lock [INFO filelock:274]
168 get PythonInfo from /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/aaafe28a6254581d4f0ccfa0911e2de9e463b78fe3b32b118542e908e534a6ec.json for /usr/bin/python [DEBUG cached_py_info:67]
169 Attempting to release lock 4564099344 on /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/aaafe28a6254581d4f0ccfa0911e2de9e463b78fe3b32b118542e908e534a6ec.lock [DEBUG filelock:315]
169 Lock 4564099344 released on /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/aaafe28a6254581d4f0ccfa0911e2de9e463b78fe3b32b118542e908e534a6ec.lock [INFO filelock:318]
169 proposed PythonInfo(spec=CPython2.7.16.final.0-64, exe=/usr/bin/python, original=/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python, platform=darwin, version='2.7.16 (default, Nov  9 2019, 05:55:08) \n[GCC 4.2.1 Compatible Apple LLVM 11.0.0 (clang-1100.0.32.4) (-macos10.15-objc-s', encoding_fs_io=utf-8-None) [INFO builtin:48]
169 discover PATH[9]=/bin [DEBUG builtin:75]
169 discover PATH[10]=/usr/sbin [DEBUG builtin:75]
169 discover PATH[11]=/sbin [DEBUG builtin:75]
170 discover PATH[12]=/Library/TeX/texbin [DEBUG builtin:75]
170 discover PATH[13]=/opt/X11/bin [DEBUG builtin:75]
170 done in 82ms [INFO __main__:23]
Traceback (most recent call last):
  File "/Users/brettmz/Library/Python/3.7/bin/virtualenv", line 8, in <module>
    sys.exit(run())
  File "/Users/brettmz/Library/Python/3.7/lib/python/site-packages/virtualenv/__main__.py", line 16, in run
    run_via_cli(args)
  File "/Users/brettmz/Library/Python/3.7/lib/python/site-packages/virtualenv/run/__init__.py", line 21, in run_via_cli
    session = session_via_cli(args)
  File "/Users/brettmz/Library/Python/3.7/lib/python/site-packages/virtualenv/run/__init__.py", line 33, in session_via_cli
    raise RuntimeError("failed to find interpreter for {}".format(discover))
RuntimeError: failed to find interpreter for Builtin discover of python_spec='/usr/local/bin/python2'
matthew-brett picture matthew-brett 于 2020-01-28

这部分好像有相关资料：
``
161 找到规范 PythonSpec 的解释器（str_spec=/usr/local/bin/python2，path=/usr/local/bin/python2）[内置信息

163 从 /Users/brettmz/Library/Application Support/virtualenv/py-info/20.0.0b1/480187601bdac08cce463831e50aade5e1a71f4acabcd8828b0a0dd3276fab67local.json 获取 PythonInfo信息： /python_gusrd67local.json

163 提议 PythonInfo(spec=CPython2.7.17.final.0-64, exe=/usr/local/bin/python2.7, original=/usr/local/opt/ python@2/bin/python2.7 , platform= darwin, version='2.7.17 (default, Oct 24 2019, 12:57:38) \n[GCC 4.2.1 Compatible Apple LLVM 11.0.0 (clang-1100.0.33.8)]', encoding_fs_io=utf-8-无）[内置信息
````

似乎以某种方式/usr/local/bin/python2转换为/usr/local/bin/python2.7 ... /usr/local/bin/python2.7指向什么？

gaborbernat picture gaborbernat 于 2020-01-28

它给：

$ ls -al /usr/local/bin/python2.7
lrwxr-xr-x  1 brettmz  admin  39 Nov 15 12:04 /usr/local/bin/python2.7 -> ../Cellar/python@2/2.7.17/bin/python2.7

直接用/usr/local/bin/python2启动解释器可以正常工作，但我想这是从它在较旧的 virtualenv 中工作的事实得出的结论。

$ /usr/local/bin/python2
Python 2.7.17 (default, Oct 24 2019, 12:57:38) 
[GCC 4.2.1 Compatible Apple LLVM 11.0.0 (clang-1100.0.33.8)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>>
matthew-brett picture matthew-brett 于 2020-01-28

如果你可以尝试一下，我认为https://github.com/pypa/virtualenv/pull/1513会解决这个问题🤔

gaborbernat picture gaborbernat 于 2020-01-28

公平地说，这里的正确测试是首先尝试使用/usr/local/bin/python2.7创建一个 python，然后使用/usr/local/bin/python2 ... 两者都应该可以工作。

gaborbernat picture gaborbernat 于 2020-01-28

我相信https://github.com/pypa/virtualenv/pull/1513解决了这个问题，至少根据我的测试，如果没有，请随时报告，我们将重新打开这个问题。

gaborbernat picture gaborbernat 于 2020-01-28

使用未修改的测试版，这有效：

virtualenv --python=/usr/local/bin/python2.7 foo

要么与您当前的discovery分支一起使用。

感谢您的快速回复。

matthew-brett picture matthew-brett 于 2020-01-28
🎉2

感谢您花时间试驾新版本

thanks

gaborbernat picture gaborbernat 于 2020-01-28
👍1
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