问题描述
我遇到了一个我无法解决的错误,尽管其他人报告了同样的错误.
I'm running into an error that I can't solve despite others having reported the same error.
我正在远程连接到 Linux 机器.我已经安装了最新版本的 anaconda:
I am connecting remotely to a Linux machine. I have installed the latest version of anaconda:
$ bash Anaconda2-2.4.0-Linux-x86_64.sh // A lot of python libraries get installed installing: _cache-0.0-py27_x0 ... Python 2.7.10 :: Continuum Analytics, Inc. creating default environment... installation finished.
我更新了对应的路径,好像可以了:
I updated the corresponding paths and it seems like it works:
$ python Python 2.7.10 |Anaconda 2.4.0 (64-bit)| (default, Oct 19 2015, 18:04:42) [GCC 4.4.7 20120313 (Red Hat 4.4.7-1)] on linux2 Type "help", "copyright", "credits" or "license" for more information. Anaconda is brought to you by Continuum Analytics. Please check out: http://continuum.io/thanks and https://anaconda.org
太好了,所以现在我想使用 Anaconda 预装的 conda.看起来 Anaconda 给了我 3.18.3:
Great, so now I want to use conda, which is pre-installed with Anaconda. It looks like Anaconda gave me 3.18.3:
$ conda --version conda 3.18.3
按照试驾说明,我更新了conda:
Following the test drive instructions, I update conda:
$ conda update conda Fetching package metadata: An unexpected error has occurred, please consider sending the following traceback to the conda GitHub issue tracker at: http://www.51sjk.com/Upload/Articles/1/0/336/336200_20221104102807047.jpg Include the output of the command 'conda info' in your report. Traceback (most recent call last): File "/code/anaconda2-4-0/bin/conda", line 5, in <module> sys.exit(main()) File "/code/anaconda2-4-0/lib/python2.7/site-packages/conda/cli/main.py", line 195, in main args_func(args, p) File "/code/anaconda2-4-0/lib/python2.7/site-packages/conda/cli/main.py", line 202, in args_func args.func(args, p) File "/code/anaconda2-4-0/lib/python2.7/site-packages/conda/cli/main_update.py", line 48, in execute install.install(args, parser, 'update') File "/code/anaconda2-4-0/lib/python2.7/site-packages/conda/cli/install.py", line 239, in install offline=args.offline) File "/code/anaconda2-4-0/lib/python2.7/site-packages/conda/cli/common.py", line 598, in get_index_trap return get_index(*args, **kwargs) File "/code/anaconda2-4-0/lib/python2.7/site-packages/conda/api.py", line 42, in get_index unknown=unknown) File "/code/anaconda2-4-0/lib/python2.7/site-packages/conda/utils.py", line 119, in __call__ value = self.func(*args, **kw) File "/code/anaconda2-4-0/lib/python2.7/site-packages/conda/fetch.py", line 237, in fetch_index session = CondaSession() File "/code/anaconda2-4-0/lib/python2.7/site-packages/conda/connection.py", line 61, in __init__ super(CondaSession, self).__init__(*args, **kwargs) File "/usr/lib/python2.7/dist-packages/requests/sessions.py", line 272, in __init__ self.headers = default_headers() File "/usr/lib/python2.7/dist-packages/requests/utils.py", line 555, in default_headers 'User-Agent': default_user_agent(), File "/usr/lib/python2.7/dist-packages/requests/utils.py", line 524, in default_user_agent _implementation = platform.python_implementation() File "/usr/lib/python2.7/platform.py", line 1521, in python_implementation return _sys_version()[0] File "/usr/lib/python2.7/platform.py", line 1486, in _sys_version repr(sys_version)) ValueError: failed to parse CPython sys.version: '2.7.10 |Anaconda 2.4.0 (64-bit)| (default, Oct 19 2015, 18:04:42) [GCC 4.4.7 20120313 (Red Hat 4.4.7-1)]'
很遗憾,我不知道如何避免这个错误.
Unfortunately, I can't figure out how to avoid this error.
我发现了一些其他 StackOverflow 帖子.这个建议从头开始重新安装python和pycharm(但我刚刚安装了Anaconda,我不使用pycharm).另一个建议重新安装机盖,但我'我不在这里使用它.最后,第三个建议这实际上是一个错误,并提出了修复建议.不幸的是,重命名 sys.version 无法解决错误.这甚至不是我的电脑,所以我不想深入研究代码并冒险搞砸.
I found a few other StackOverflow posts. This one suggests reinstalling python and pycharm from scratch (but I just installed Anaconda and I don't use pycharm). Another suggests reinstalling canopy, but I'm not using that here. Finally, a third suggests that it's actually a bug, and proposes a fix. Unfortunately, re-naming sys.version fails to resolve the error. This isn't even my computer so I don't want to get deep into the code and risk messing something up.
我会很感激一些想法或建议.
I would appreciate some thoughts or advice.
推荐答案
第三种解决方案是正确的.这确实是一个错误,因为修改后的 sys.version 字符串破坏了许多依赖于具有特定格式的字符串的 platform 模块函数.
Third solution is correct. This is indeed a bug, since modified sys.version string breaks a number of platform module functions that rely on that string having certain format.
但是,如果您无法正确修复它,您可以尝试一个 hacky 解决方法.模块 platform 实际上有一个用于解析 sys.version 字符串的缓存:所以你要做的是:
However, if you cannot fix it properly, you can attempt a hacky workaround. Module platform actually has a cache for parsing sys.version string: so what you have to do is:
- 备份 Anaconda 修改的 sys.version.
- 将其替换为合法版本字符串.
- 调用任何能够解析 sys.version 字符串的 platform 模块函数.
- 为 Anaconda 修改的 sys.version 复制它的缓存.
- 从备份中恢复 sys.version.
破解自己:
try: import sys # Just in case start = sys.version.index('|') # Do we have a modified sys.version? end = sys.version.index('|', start + 1) version_bak = sys.version # Backup modified sys.version sys.version = sys.version.replace(sys.version[start:end+1], '') # Make it legible for platform module import platform platform.python_implementation() # Ignore result, we just need cache populated platform._sys_version_cache[version_bak] = platform._sys_version_cache[sys.version] # Duplicate cache sys.version = version_bak # Restore modified version string except ValueError: # Catch .index() method not finding a pipe pass
您需要将此代码放在将要执行的位置在 conda 有机会因异常而失败.不确定最好的地方是什么,但您可以尝试使用 conda/cli/main.py、conda/api.py 或 conda/connection.py.
You need to put this code somewhere where it will be executed before conda has a chance to fail with exception. Not sure what the best place would be, but you could try it with conda/cli/main.py, conda/api.py or conda/connection.py.