Programming Forums > Script Programming > Python

seVor · May 2nd, 2008, 12:58 PM

Ok so I am trying to created a app that will loop through a folder and delete files with names that contains key words (ie: 'copy'). I have done some research and tried a few things but cant quite get it to work. Is there a way to check if 'copy' is in a string. Like a .contains() or something. Thanks for your help

Freaky Chris · May 2nd, 2008, 1:09 PM

indeed there is

 Python Syntax (Toggle Plain Text) 
teststring = "hello there"
z = teststring.find("there")
print z
teststring = "hello there"
z = teststring.find("there")
print z

What will be printed out is there position of the first character of the substring "there".

Hope this help,

Chris

Sane · May 2nd, 2008, 3:18 PM

It gets even simpler than that. You can use the "in" operator to test for the occurrence of a string within another string. For example, the following program will search for the string "quey" within every file inside all directories and subdirectories of "fdir".

 Python Syntax (Toggle Plain Text) 
import os
 
query = "localhost".lower()
fdir = 'aaron_storage'
 
for root, dirs, files in os.walk(fdir):
    for file in files:
        fname = os.path.join(root, file)
        if query in open(fname, 'r').read().lower():
            print '\n' + fname
    print '.',
 
raw_input('Done')
import os

query = "localhost".lower()
fdir = 'aaron_storage'

for root, dirs, files in os.walk(fdir):
    for file in files:
        fname = os.path.join(root, file)
        if query in open(fname, 'r').read().lower():
            print '\n' + fname
    print '.',
        
raw_input('Done')

seVor · May 5th, 2008, 2:16 PM

SWEET.... You all are gods!! and I am a newb.... lol

Freaky Chris · May 5th, 2008, 2:17 PM

Gods, nah God yes (Sane) fool who likes to think he knows something about programming (me) lol.
Glad everything is working for you, if it is of course

Chris

seVor · May 5th, 2008, 2:21 PM

Yeah.. I am a .net guru but falling head over heals for linux. PHP and python are awsome.

Freaky Chris · May 5th, 2008, 2:24 PM

Personally unfortunatley i know little of any language, i just know some Python, C++, Java, VB.NET, PHP, JavaScript. But i kinda enjoy knowing a little in each, i hope to be able to gain a better understanding in one area though.

As well as do alot of work on algorithms its just finding time inbetween college, hopefull i'll be able to build on things when i reach uni in a specialized language most likely Java.

Chris

seVor · May 5th, 2008, 2:26 PM

well sounds like you have a good start. Just keep up the learning and it will be great. I recommend also learning MySQL

Freaky Chris · May 5th, 2008, 2:29 PM

Indeed i do need to look into SQL not just specifically for MySQL but for all database software, once again though it is finding time. I use to know the basics of it when i first began to look into PHP in detail but since then i have lost track of it due to the fact i don't use PHP all that often and what little i did got pussed aside for GCSE exams and then college

thanks for the tip though

Chris

seVor · May 5th, 2008, 2:39 PM

yeah... I know MSSQL but its not a free solution. You can pretty much get the gist with MySQL. I am wanting to learn how to access a MySQL database via python. I have some ideas for cracking the md5 ecryption. I know that I will prob never crack it but hey, it might be fun to give it a shot.

May 2nd, 2008, 12:58 PM	#1
seVor .NET Ninja - python newb Join Date: Apr 2008 Posts: 13 Rep Power: 0	Help with strings Ok so I am trying to created a app that will loop through a folder and delete files with names that contains key words (ie: 'copy'). I have done some research and tried a few things but cant quite get it to work. Is there a way to check if 'copy' is in a string. Like a .contains() or something. Thanks for your help __________________ The way programmers percive beauty is intimately related to their ability to process and understand complexity.

May 2nd, 2008, 1:09 PM	#2
Freaky Chris Hobbyist Programmer Join Date: Dec 2007 Location: England Posts: 169 Rep Power: 1	Re: Help with strings indeed there is Python Syntax (Toggle Plain Text) teststring = "hello there" z = teststring.find("there") print z teststring = "hello there" z = teststring.find("there") print z What will be printed out is there position of the first character of the substring "there". Hope this help, Chris __________________ Who said i couldn't program `sarcasm = raw_input('Type in a sarcastic remark: ') print sarcasm`

May 2nd, 2008, 3:18 PM	#3
Sane Programming Guru Join Date: Apr 2005 Posts: 1,786 Rep Power: 5	Re: Help with strings It gets even simpler than that. You can use the "in" operator to test for the occurrence of a string within another string. For example, the following program will search for the string "quey" within every file inside all directories and subdirectories of "fdir". Python Syntax (Toggle Plain Text) import os query = "localhost".lower() fdir = 'aaron_storage' for root, dirs, files in os.walk(fdir): for file in files: fname = os.path.join(root, file) if query in open(fname, 'r').read().lower(): print '\n' + fname print '.', raw_input('Done') import os query = "localhost".lower() fdir = 'aaron_storage' for root, dirs, files in os.walk(fdir): for file in files: fname = os.path.join(root, file) if query in open(fname, 'r').read().lower(): print '\n' + fname print '.', raw_input('Done') __________________ Waterloo's Canadian Computing Competition (CCC) - Stage 2 Problems, Solutions, and Test Data

May 5th, 2008, 2:16 PM	#4
seVor .NET Ninja - python newb Join Date: Apr 2008 Posts: 13 Rep Power: 0	Re: Help with strings SWEET.... You all are gods!! and I am a newb.... lol __________________ The way programmers percive beauty is intimately related to their ability to process and understand complexity.

May 5th, 2008, 2:17 PM	#5
Freaky Chris Hobbyist Programmer Join Date: Dec 2007 Location: England Posts: 169 Rep Power: 1	Re: Help with strings Gods, nah God yes (Sane) fool who likes to think he knows something about programming (me) lol. Glad everything is working for you, if it is of course Chris __________________ Who said i couldn't program `sarcasm = raw_input('Type in a sarcastic remark: ') print sarcasm`

May 5th, 2008, 2:21 PM	#6
seVor .NET Ninja - python newb Join Date: Apr 2008 Posts: 13 Rep Power: 0	Re: Help with strings Yeah.. I am a .net guru but falling head over heals for linux. PHP and python are awsome. __________________ The way programmers percive beauty is intimately related to their ability to process and understand complexity.

May 5th, 2008, 2:24 PM	#7
Freaky Chris Hobbyist Programmer Join Date: Dec 2007 Location: England Posts: 169 Rep Power: 1	Re: Help with strings Personally unfortunatley i know little of any language, i just know some Python, C++, Java, VB.NET, PHP, JavaScript. But i kinda enjoy knowing a little in each, i hope to be able to gain a better understanding in one area though. As well as do alot of work on algorithms its just finding time inbetween college, hopefull i'll be able to build on things when i reach uni in a specialized language most likely Java. Chris __________________ Who said i couldn't program `sarcasm = raw_input('Type in a sarcastic remark: ') print sarcasm`

May 5th, 2008, 2:26 PM	#8
seVor .NET Ninja - python newb Join Date: Apr 2008 Posts: 13 Rep Power: 0	Re: Help with strings well sounds like you have a good start. Just keep up the learning and it will be great. I recommend also learning MySQL __________________ The way programmers percive beauty is intimately related to their ability to process and understand complexity.

May 5th, 2008, 2:29 PM	#9
Freaky Chris Hobbyist Programmer Join Date: Dec 2007 Location: England Posts: 169 Rep Power: 1	Re: Help with strings Indeed i do need to look into SQL not just specifically for MySQL but for all database software, once again though it is finding time. I use to know the basics of it when i first began to look into PHP in detail but since then i have lost track of it due to the fact i don't use PHP all that often and what little i did got pussed aside for GCSE exams and then college thanks for the tip though Chris __________________ Who said i couldn't program `sarcasm = raw_input('Type in a sarcastic remark: ') print sarcasm`

May 5th, 2008, 2:39 PM	#10
seVor .NET Ninja - python newb Join Date: Apr 2008 Posts: 13 Rep Power: 0	Re: Help with strings yeah... I know MSSQL but its not a free solution. You can pretty much get the gist with MySQL. I am wanting to learn how to access a MySQL database via python. I have some ideas for cracking the md5 ecryption. I know that I will prob never crack it but hey, it might be fun to give it a shot. __________________ The way programmers percive beauty is intimately related to their ability to process and understand complexity.

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Programming Forums > Script Programming > Python

Help with strings