#3 Pipenv：PkgResourcesDeprecationWarning

Pipenv 2022-11-13 
~/.local/lib/python3.10/site-packages/pkg_resources/__init__.py:123: PkgResourcesDeprecationWarning: 1.1build1 is an invalid version and will not be supported in a future release
  warnings.warn(
~/.local/lib/python3.10/site-packages/pkg_resources/__init__.py:123: PkgResourcesDeprecationWarning: 0.1.43ubuntu1 is an invalid version and will not be supported in a future release
  warnings.warn(
~/.local/lib/python3.10/site-packages/pkg_resources/__init__.py:123: PkgResourcesDeprecationWarning: 2.9.0.Odd.Olm is an invalid version and will not be supported in a future release
  warnings.warn(

Pipenv 最近执行命令的时候会有这些提示，看这个意思是检测了一些 Python 包的版本不被支持。
用 traceback 排查之后，确认是在 Python PATH 下检查所有包的版本。
出问题的三个包是：

  • distro-info <LegacyVersion('1.1build1')> /usr/lib/python3/dist-packages
  • python-debian <LegacyVersion('0.1.43ubuntu1')> /usr/lib/python3/dist-packages
  • Shredder <LegacyVersion('2.9.0.Odd.Olm')> /usr/lib/python3/dist-packages

查找路径：

~/.local/lib/python3.10/site-packages/pipenv/patched
~/.local/lib/python3.10/site-packages/pipenv/vendor
~/Projects/Mine/staticize
/usr/lib/python310.zip
/usr/lib/python3.10
/usr/lib/python3.10/lib-dynload
~/.local/lib/python3.10/site-packages
~/.local/lib/python3.10/site-packages/mackup-0.8.33-py3.10.egg
/usr/local/lib/python3.10/dist-packages
/usr/lib/python3/dist-packages

相关代码：

File "~/.local/lib/python3.10/site-packages/pkg_resources/__init__.py", line 997, in __init__
  self.scan(search_path)
File "~/.local/lib/python3.10/site-packages/pkg_resources/__init__.py", line 1030, in scan
  self.add(dist)
File "~/.local/lib/python3.10/site-packages/pkg_resources/__init__.py", line 1050, in add
  dists.sort(key=operator.attrgetter('hashcmp'), reverse=True)
File "~/.local/lib/python3.10/site-packages/pkg_resources/__init__.py", line 2623, in hashcmp
  self.parsed_version,
File "~/.local/lib/python3.10/site-packages/pkg_resources/__init__.py", line 2671, in parsed_version
  self._parsed_version = parse_version(self.version)
File "~/.local/lib/python3.10/site-packages/pkg_resources/__init__.py", line 122, in parse_version
  print(''.join(traceback.format_stack()))

#1 Python 定时任务的简单部署

Python Pipenv Virtualenv Crontab 2018-12-20

部署

# curl: (35) SSL connect error
# StackOverflow: You are using a very old version of curl.
# yum upgrade curl

# 安装 pyenv
curl -L https://github.com/pyenv/pyenv-installer/raw/master/bin/pyenv-installer | bash

# 环境变量
PYENV_ROOT="$HOME/.pyenv"
PATH="$PYENV_ROOT/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"

# 可用版本列表
pyenv install -l
# 使用国内 Python 镜像，相当于给 pyenv 加速
wget https://mirrors.sohu.com/python/3.6.7/Python-3.6.7.tar.xz -P ~/.pyenv/cache/
# 安装（优先使用缓存目录中的文件，会检查缓存校验码是否正确）
pyenv install 3.6.7

运行方式

假定：

  • 项目路径：/path/to/project/
  • 定时任务命令：python main.py

crontab 配置

早上 01:15 执行某某定时任务：

15 1 * * * /bin/bash /path/to/project/cron.sh

脚本 cron.sh

pyenv + pip 模式

#!/bin/bash

# 环境变量
PYENV_ROOT="$HOME/.pyenv"
PATH="$PYENV_ROOT/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"

cd /path/to/project/

# 创建并激活虚拟环境，安装依赖
# $PYENV_ROOT/versions/3.6.7/envs/tasks/
pyenv virtualenv 3.6.7 tasks

if [ $? -ne 0 ]; then
    pyenv activate tasks
    pip install -r requirements.txt
else
    pyenv activate tasks
fi

# 运行脚本
python main.py

pyenv + pipenv 模式

#!/bin/bash

# 环境变量
PYENV_ROOT="$HOME/.pyenv"
PATH="$PYENV_ROOT/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"

cd /path/to/project/

# 选择 Python 版本
pyenv local 3.6.7

pip show pipenv > /dev/null

if [ $? -ne 0 ]; then
    # 安装 pipenv
    pip install pipenv
    # 创建虚拟环境，安装依赖
    pipenv install
fi

# 运行脚本
pipenv run python main.py