問題描述
我遇到了一個(gè)我無法解決的錯(cuò)誤，盡管其他人報(bào)告了同樣的錯(cuò)誤.
I'm running into an error that I can't solve despite others having reported the same error.
我正在遠(yuǎn)程連接到 Linux 機(jī)器.我已經(jīng)安裝了最新版本的 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.
我更新了對(duì)應(yīng)的路徑，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，所以現(xiàn)在我想使用 Anaconda 預(yù)裝的 conda.看起來 Anaconda 給了我 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
按照試駕說明，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:
https://github.com/conda/conda/issues
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)]'
很遺憾，我不知道如何避免這個(gè)錯(cuò)誤.
Unfortunately, I can't figure out how to avoid this error.
我發(fā)現(xiàn)了一些其他 StackOverflow 帖子.這個(gè)建議從頭開始重新安裝python和pycharm(但我剛剛安裝了Anaconda，我不使用pycharm).另一個(gè)建議重新安裝機(jī)蓋，但我'我不在這里使用它.最后，第三個(gè)建議這實(shí)際上是一個(gè)錯(cuò)誤，并提出了修復(fù)建議.不幸的是，重命名 sys.version 無法解決錯(cuò)誤.這甚至不是我的電腦，所以我不想深入研究代碼并冒險(xiǎn)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.
我會(huì)很感激一些想法或建議.
I would appreciate some thoughts or advice.
推薦答案
第三種解決方案是正確的.這確實(shí)是一個(gè)錯(cuò)誤，因?yàn)樾薷暮蟮?sys.version 字符串破壞了許多依賴于具有特定格式的字符串的 platform 模塊函數(shù).
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，如果您無法正確修復(fù)它，您可以嘗試一個(gè) hacky 解決方法.模塊 platform 實(shí)際上有一個(gè)用于解析 sys.version 字符串的緩存: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:
- 備份 Anaconda 修改的 sys.version.
- 將其替換為合法版本字符串.
- 調(diào)用任何能夠解析 sys.version 字符串的
platform模塊函數(shù). - 為 Anaconda 修改的 sys.version 復(fù)制它的緩存.
- 從備份中恢復(fù) 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
您需要將此代碼放在將要執(zhí)行的位置在 conda 有機(jī)會(huì)因異常而失敗.不確定最好的地方是什么，但您可以嘗試使用 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.
這篇關(guān)于ValueError:使用 conda 命令后無法解析 CPython sys.version的文章就介紹到這了，希望我們推薦的答案對(duì)大家有所幫助，也希望大家多多支持html5模板網(wǎng)！