Delete string after character python

Question

I have a string. How do I remove all text after a certain character? (In this case ...)
The text after will ... change so I that's why I want to remove all characters after a certain one.

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How do you remove a string after a character in Python?
How do I remove a string after a character?
How do you delete text before a specific character in Python?
How do you remove a string from a string in Python?

wjandrea

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asked May 24, 2009 at 21:56

0

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

sep = '...'
stripped = text.split(sep, 1)[0]

You didn't say what should happen if the separator isn't present. Both this and Alex's solution will return the entire string in that case.

wjandrea

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answered May 24, 2009 at 22:01

Ned BatchelderNed Batchelder

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4

Assuming your separator is '...', but it can be any string.

text = 'some string... this part will be removed.'
head, sep, tail = text.partition('...')

>>> print head
some string

If the separator is not found, head will contain all of the original string.

The partition function was added in Python 2.5.

S.partition(sep) -> (head, sep, tail)
Searches for the separator sep in S, and returns the part before it, the separator itself, and the part after it. If the separator is not found, returns S and two empty strings.

wjandrea

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answered May 24, 2009 at 22:02

Ayman HouriehAyman Hourieh

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If you want to remove everything after the last occurrence of separator in a string I find this works well:

<separator>.join(string_to_split.split(<separator>)[:-1])

For example, if string_to_split is a path like root/location/child/too_far.exe and you only want the folder path, you can split by "/".join(string_to_split.split("/")[:-1]) and you'll get root/location/child

answered Sep 14, 2015 at 22:18

theannouncertheannouncer

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1

Without a regular expression (which I assume is what you want):

def remafterellipsis(text):
  where_ellipsis = text.find('...')
  if where_ellipsis == -1:
    return text
  return text[:where_ellipsis + 3]

or, with a regular expression:

import re

def remwithre(text, there=re.compile(re.escape('...')+'.*')):
  return there.sub('', text)

wjandrea

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answered May 24, 2009 at 22:00

Alex MartelliAlex Martelli

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3

import re
test = "This is a test...we should not be able to see this"
res = re.sub(r'\.\.\..*',"",test)
print(res)

Output: "This is a test"

answered Feb 26, 2020 at 14:12

MarcusMarcus

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1

From a file:

import re
sep = '...'

with open("requirements.txt") as file_in:
    lines = []
    for line in file_in:
        res = line.split(sep, 1)[0]
        print(res)

answered Mar 19, 2020 at 23:42

The method find will return the character position in a string. Then, if you want remove every thing from the character, do this:

mystring = "123⋯567"
mystring[ 0 : mystring.index("⋯")]

>> '123'

If you want to keep the character, add 1 to the character position.

answered Jun 18, 2020 at 2:42

This is in python 3.7 working to me In my case I need to remove after dot in my string variable fees

fees = 45.05
split_string = fees.split(".", 1)

substring = split_string[0]

print(substring)

answered Mar 3, 2021 at 10:54

Ganesan JGanesan J

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Yet another way to remove all characters after the last occurrence of a character in a string (assume that you want to remove all characters after the final '/').

path = 'I/only/want/the/containing/directory/not/the/file.txt'

while path[-1] != '/':
    path = path[:-1]

answered May 25, 2021 at 22:18

1

another easy way using re will be

import re, clr

text = 'some string... this part will be removed.'

text= re.search(r'(\A.*)\.\.\..+',url,re.DOTALL|re.IGNORECASE).group(1)

// text = some string

answered May 20, 2015 at 10:42

1

How do you remove a string after a character in Python?

To remove everything after a character in a string:.

Use the str. split() method to split the string on the separator..

Access the list element at index 0 to get everything before the separator..

Optionally, use the addition (+) operator to add the separator..

How do I remove a string after a character?

Use the String. slice() method to remove everything after a specific character, e.g. const removed = str. slice(0, str. indexOf('[')); .

How do you delete text before a specific character in Python?

To remove everything before the first occurrence of the character '-' in a string, pass the character '-' as separator and 1 as the max split value. The split('-', 1) function will split the string into 2 parts, Part 1 should contain all characters before the first occurrence of character '-'.

How do you remove a string from a string in Python?

In Python you can use the replace() and translate() methods to specify which characters you want to remove from a string and return a new modified string result. It is important to remember that the original string will not be altered because strings are immutable.

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