How to determine if a line in a file matches a wildcard expression?-CodePudding

How should I type in Python if condition to match wildcard expression (*)?

I am trying to find line(s) in file that match wildcard expression - ...string1*string2*string3...

with open(file,'rw') as FILE:
  lines = FILE.readlines()
  for line in lines:
       if line == "string1*string2*string3":
       print (line)

CodePudding user response：

Here's a sample:

import re
with open(file,'r') as file:
  for line in file.readlines():
    if re.search( "string1.*string2.*string3", line ):
       print (line)

Of course, if this is ALL you're doing, you don't need Python at all:

grep 'string1.*string2.*string3'  file.txt

Or on Windows:

findstr /r "string1.*string2.*string3" file.txt

CodePudding user response：

Here is a solution using regular expressions:

import re

mystring = re.compile('string1.*string2.*string3')
filename = '/path/to/some/file'

with open(filename) as f:
    for line in f.readlines():
        if mystring.match(line):
            print(line)

CodePudding user response：

with open(file,'rw') as FILE:
  lines = FILE.readlines()
  for line in lines:
      if "string1*string2*string3" in line:
          print(line)