用 pip3 去安装第三方模块会提示找不到版本？

Could not find a version that satisfies the requirement cryptography (from PyMySQL==0.9.2) (from versions: ) No matching distribution found for cryptography (from PyMySQL==0.9.2)

又遇到这种问题的大佬吗？

pip3

Requests

from

pymysql

10 条回复 • 2018-12-13 08:25:41 +08:00

holajamc

2018-12-10 16:22:03 +08:00

更新 setuptools 或者 pip 试试呗？

careofzm

2018-12-10 17:44:28 +08:00

感觉是你的 pip 源的问题，用阿里的源或者官方的源试试

louhang

2018-12-10 17:50:18 +08:00

我在 linux 的 python 文件夹中没有找到 Scripts 这个文件夹，和这个有关系吗？

louhang

2018-12-10 17:50:38 +08:00

@careofzm
@holajamc
我在 linux 的 python 文件夹中没有找到 Scripts 这个文件夹，和这个有关系吗？

hsfzxjy

2018-12-10 18:08:56 +08:00 via Android

@louhang linux 下本来就不会有这个目录，应该是源的问题

careofzm

2018-12-10 18:19:17 +08:00

pip search cryptography, 你先搜搜有没有这个

careofzm

2018-12-10 18:34:43 +08:00

两个建议，一个是卸载重装 uninstall python3-pip，另一个指定源-i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com

louhang

2018-12-10 18:41:00 +08:00

@careofzm
pip3 install requests -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com
Exception:
Traceback (most recent call last):
File "/usr/local/python3/lib/python3.6/site-packages/pip/basecommand.py", line 215, in main
status = self.run(options, args)
File "/usr/local/python3/lib/python3.6/site-packages/pip/commands/install.py", line 342, in run
prefix=options.prefix_path,
File "/usr/local/python3/lib/python3.6/site-packages/pip/req/req_set.py", line 784, in install
**kwargs
File "/usr/local/python3/lib/python3.6/site-packages/pip/req/req_install.py", line 851, in install
self.move_wheel_files(self.source_dir, root=root, prefix=prefix)
File "/usr/local/python3/lib/python3.6/site-packages/pip/req/req_install.py", line 1064, in move_wheel_files
isolated=self.isolated,
File "/usr/local/python3/lib/python3.6/site-packages/pip/wheel.py", line 345, in move_wheel_files
clobber(source, lib_dir, True)
File "/usr/local/python3/lib/python3.6/site-packages/pip/wheel.py", line 316, in clobber
ensure_dir(destdir)
File "/usr/local/python3/lib/python3.6/site-packages/pip/utils/__init__.py", line 83, in ensure_dir
os.makedirs(path)
File "/usr/local/python3/lib/python3.6/os.py", line 220, in makedirs
mkdir(name, mode)
PermissionError: [Errno 13] Permission denied: '/usr/local/python3/lib/python3.6/site-packages/urllib3'
感觉也不是源的问题呀，这个 python 是运维给部的，我也没 root 权限，只是一个正常访问 linux 服务器的权限。

careofzm

2018-12-10 19:24:15 +08:00

你创建个虚拟环境，virtualenv 这个包安装了吧，
mkdir py3
virtualenv py3 -p python3
source py3/bin/active
pip install requests
用这个虚拟环境吧，如果没有权限，或没有 virtuanlenv 运维装一个吧

xueyoucai

2018-12-13 08:25:41 +08:00

换个源试试