自动创建requirements.txt

有时我从github下载python源代码，不知道如何安装所有的依赖项。如果没有requirements.txt文件，我必须手工创建它。问题是: 给定python源代码目录，是否有可能从导入部分自动创建requirements.txt ?

当前回答

对于python3:(我的机器上有python2和python3，其中python2是默认值)

# install
pip3 install pipreqs

# Run in current directory
python3 -m  pipreqs.pipreqs .

python2:

pip install pipreqs
python -m  pipreqs.pipreqs .

检查你的python版本:

python --version

2021-07-21 12:17:49

其他回答

如果你只想列出在virtualenv中使用的包，请使用:

pip freeze -l > requirements.txt

2021-04-10 10:32:16

如果遇到和我一样的问题，即不在虚拟环境中，并且想要特定项目的requirements.txt或从选定的文件夹(包括子)和pipreqs是不支持的。

你可以使用:

import os
import sys
from fuzzywuzzy import fuzz
import subprocess

path = "C:/Users/Username/Desktop/DjangoProjects/restAPItest"


files = os.listdir(path)
pyfiles = []
for root, dirs, files in os.walk(path):
      for file in files:
        if file.endswith('.py'):
              pyfiles.append(os.path.join(root, file))

stopWords = ['from', 'import',',','.']

importables = []

for file in pyfiles:
    with open(file) as f:
        content = f.readlines()

        for line in content:
            if "import" in line:
                for sw in stopWords:
                    line = ' '.join(line.split(sw))

                importables.append(line.strip().split(' ')[0])

importables = set(importables)

subprocess.call(f"pip freeze > {path}/requirements.txt", shell=True)

with open(path+'/requirements.txt') as req:
    modules = req.readlines()
    modules = {m.split('=')[0].lower() : m for m in modules}


notList = [''.join(i.split('_')) for i in sys.builtin_module_names]+['os']

new_requirements = []
for req_module in importables:
    try :
        new_requirements.append(modules[req_module])

    except KeyError:
        for k,v in modules.items():
            if len(req_module)>1 and req_module not in notList:
                if fuzz.partial_ratio(req_module,k) > 90:
                    new_requirements.append(modules[k])

new_requirements = [i for i in set(new_requirements)]

new_requirements

with open(path+'/requirements.txt','w') as req:
    req.write(''.join(new_requirements))

附注:它可能有一些额外的库，因为它检查模糊逻辑。

2019-08-15 18:40:27

创建requirement.txt:

对于Python 3版本命令为: