CODEWITHSUNDEEP
pythonregexpython-2.7randomstrip
Alexander Scherer
Alexander Scherer

Reputation: 107

How to strip random Chars at the end of a String with Regex / Strip() in Python?

What is the preferred way to cut off random characters at the end of a string in Python?

I am trying to simplify a list of URLs to do some analysis and therefore need to cut-off everything that comes after the file extension .php

Since the characters that follow after .php are different for each URL using strip() doesn't work. I thought about regex and substring(). But what would be the most efficient way to solve this task?

Example:

Let's say I have the following URLs:

example.com/index.php?random_var=random-19wdwka
example.org/index.php?another_var=random-2js9m2msl

And I want the output to be:

example.com/index.php
example.org/index.php

Thanks for your advice!

Upvotes: 1

Views: 362

Answers (4)

RemcoGerlich
RemcoGerlich

Reputation: 31270

It seems like what you really want are to strip away the parameters of the URL, you can also use

from urlparse import urlparse, urlunparse

urlunparse(urlparse(url)[:3] + ('', '', ''))

to replace the params, query and fragment parts of the URL with empty strings and generate a new one.

Upvotes: 0

Rohit-Pandey
Rohit-Pandey

Reputation: 2159

Split on your separator at most once, and take the first piece:

 text="example.com/index.php?random_var=random-19wdwka"
 sep="php"
 rest = text.split(sep)[0]+".php"
 print rest

Upvotes: 0

bergerg
bergerg

Reputation: 995

There are two ways to accomplish what you want.

If you know how the string ends:

In your example, if You know that the string ends with .php? then all you need to do is:

my_string.split('?')[0]

If you don't know how the string ends:

In this case you can use urlparse and take everything but the parameters.

from urlparse import urlparse

for url is urls:
    p = urlparse(url)
    print p.scheme + p.netloc + p.path

Upvotes: 1

Goolishka
Goolishka

Reputation: 250

for url in urls:
    result = url.split('?')[0]
    print(result)

Upvotes: 0

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