pip 无法从 requirements.txt 中找到任何包

Question

我有一个 requirements.txt 文件，其中列出了以下软件包：

appdirs==1.4.3
APScheduler==3.3.1
asn1crypto==0.22.0
bcrypt==3.1.3
boto3==1.4.4
botocore==1.5.72

当我做 pip install -q -U -r requirements.txt;我收到以下错误：

Could not find a version that satisfies the requirement appdirs==1.4.3 (from -r requirements.txt (line 1)) (from versions: )
No matching distribution found for appdirs==1.4.3 (from -r requirements.txt (line 1))

但是，以下工作：

$ pip install appdirs
Collecting appdirs
  Downloading appdirs-1.4.3-py2.py3-none-any.whl
Installing collected packages: appdirs
Successfully installed appdirs-1.4.3

一旦我手动安装了 appdirs，我再次尝试运行从要求：

$ pip install -q -U -r requirements.txt
  Could not find a version that satisfies the requirement APScheduler==3.3.1 (from -r requirements.txt (line 2)) (from versions: )
No matching distribution found for APScheduler==3.3.1 (from -r requirements.txt (line 2))

我现在尝试为下一个命令指定确切的版本：

$ pip install APScheduler==3.3.1           
Collecting APScheduler==3.3.1
  Downloading APScheduler-3.3.1-py2.py3-none-any.whl (56kB)
    100% |████████████████████████████████| 61kB 2.8MB/s 
Collecting tzlocal>=1.2 (from APScheduler==3.3.1)
  Downloading tzlocal-1.4.tar.gz
Collecting funcsigs; python_version == "2.7" (from APScheduler==3.3.1)
  Downloading funcsigs-1.0.2-py2.py3-none-any.whl
Collecting six>=1.4.0 (from APScheduler==3.3.1)
  Downloading six-1.11.0-py2.py3-none-any.whl
Collecting pytz (from APScheduler==3.3.1)
  Downloading pytz-2017.2-py2.py3-none-any.whl (484kB)
    100% |████████████████████████████████| 491kB 2.2MB/s 
Requirement already satisfied: setuptools>=0.7 in ./.env/lib/python2.7/site-packages (from APScheduler==3.3.1)
Collecting futures; python_version == "2.7" (from APScheduler==3.3.1)
  Downloading futures-3.1.1-py2-none-any.whl
Building wheels for collected packages: tzlocal
  Running setup.py bdist_wheel for tzlocal ... done
  Stored in directory: $HOME/.cache/pip/wheels/dc/d6/f0/84194ccbdd3e2551bdb207e1fc1925efd32956c5767328103b
Successfully built tzlocal
Installing collected packages: pytz, tzlocal, funcsigs, six, futures, APScheduler
Successfully installed APScheduler-3.3.1 funcsigs-1.0.2 futures-3.1.1 pytz-2017.2 six-1.11.0 tzlocal-1.4

如果指定 requirements 文件，pip 怎么找不到包？为什么没有它它总是找到相同的包裹？

PS：一切都在名为 .env.

的 virtualenv 中完成

$ pip -V
pip 9.0.1 from $PWD/.env/lib/python2.7/site-packages (python 2.7)
$ python -V
Python 2.7.13
$ which python
$PWD/.env/bin/python

执行 pip --verbose 命令得到：

Collecting asn1crypto==0.22.0 (from -r requirements.txt (line 3))
  1 location(s) to search for versions of asn1crypto:
  * https://pip.<domain>/asn1crypto/
  Getting page https://pip.<domain>/asn1crypto/
  Looking up "https://pip.<domain>/asn1crypto/" in the cache
  No cache entry available
  Starting new HTTPS connection (1): pip.<domain>
  "GET /asn1crypto/ HTTP/1.1" 303 0
  Status code 303 not in [200, 203, 300, 301]
  Looking up "https://pip.<domain>/simple/asn1crypto/" in the cache
  No cache entry available
  "GET /simple/asn1crypto/ HTTP/1.1" 303 0
  Status code 303 not in [200, 203, 300, 301]
  Starting new HTTP connection (1): pypi.python.org
  "GET /simple/asn1crypto/ HTTP/1.1" 403 16
  Could not fetch URL https://pip.<domain>/asn1crypto/: 403 Client Error: SSL is required for url: http://pypi.python.org/simple/asn1crypto/ - skipping
  Could not find a version that satisfies the requirement asn1crypto==0.22.0 (from -r requirements.txt (line 3)) (from versions: )
Cleaning up...
No matching distribution found for asn1crypto==0.22.0 (from -r requirements.txt (line 3))

其中 https://pip.<domain> 是我们自定义托管的 pypi-server layer。

Answer 1

您需要将您的 pypi 服务器上的 fallback_url 设置为 https URL 因为 pypi.python.org 现在只允许 https 请求。有关详细信息，请参阅 this link (python mailing list)。

pip 无法从 requirements.txt 中找到任何包

pip fails to find any packages from requirements.txt

python

pip

package

pypi

requirements.txt