小编Dji*_*ouf的帖子

我首先尝试为它运行基本的 pip install 命令：

C:\Program Files (x86)\Python35-32>pip install lxml
Collecting lxml
  Using cached lxml-3.6.4.tar.gz
Building wheels for collected packages: lxml
  Running setup.py bdist_wheel for lxml ... error
  Complete output from command "c:\program files (x86)\python35-32\python.exe" -u -c "import setuptools, tokenize;__file__='C:\\Users\\Djidiouf\\AppData\\Local\\Temp\\pip-build-ovqa6ncd\\lxml\\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d C:\Users\Djidiouf\AppData\Local\Temp\tmp9hzx5gztpip-wheel- --python-tag cp35:
  Building lxml version 3.6.4.
  Building without Cython.
  ERROR: b"'xslt-config' is not recognized as an internal or external command,\r\noperable program or batch file.\r\n"
  ** make sure the development packages of libxml2 and …

我有一些Tython函数要插入文件中.插入多行本身可以很好地使用变量和一些\n,但不保留缩进.因为它是Python代码,这是一个大问题,代码无法正常工作.

这是我尝试过的:

cat sed-insertlines.sh

#!/bin/bash

read -r -d '' lines_to_insert << 'EOF'
def string_cleanup(x, notwanted):\n
    for item in notwanted:\n
        x = re.sub(item, '', x)\n
    return x\n
EOF

lines_to_insert=$(echo ${lines_to_insert} )

sed  -i "/import re  # Regular Expression library/a $lines_to_insert" sed-insertlines.txt

但是我最终得到的是cat sed-insertlines.txt:

#!/bin/python

import re  # Regular Expression library
def string_cleanup(x, notwanted):
 for item in notwanted:
 x = re.sub(item, '', x)
 return x


def string_replace(i_string, pattern, newpattern):
    string_corrected = re.sub(pattern, newpattern, i_string)
    return string_corrected

线条在那里,但压痕消失了.