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I need to search for a particular word in a log file For example, 255 1237 92 D++

I want to scan through each line whether the word "D++" is present. I have tried the approach below but failed.

if re.search(r"D\+\+", Line) is not None:
     print ("Success")

Thanks

shaik moeed
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Jun Fai Heu
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  • Possible duplicate of [Does Python have a string 'contains' substring method?](https://stackoverflow.com/questions/3437059/does-python-have-a-string-contains-substring-method) – Emily Nov 13 '19 at 07:04

4 Answers4

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use 'in' keyword

if 'your_str' in line:
   print('Yeah')

Example:

>>> s = 'this has D++ string'
>>> if 'D++' in s:
...    print("OK")
...
OK
>>>
drd
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Why not with in?

if 'D++' in Line:
    print ("Success")
shaik moeed
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You can use strings .find

'255 1237 92 D++'.find('D++') > -1    
Out[329]: True

In [330]: '255 1237 92 D++'.find('sdf') > -1                                                                                                                                                               
Out[330]: False
oppressionslayer
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I don't see any mistake in your solution. You can simplify your code:

if re.search(r'D\+{2}', '255 1237 92 D++'):
    print('Success')
# Success
Mykola Zotko
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