How to remove all characters after a specific character in python?
PythonReplacePython Problem Overview
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.
Python Solutions
Solution 1 - Python
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.
Solution 2 - Python
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.
Solution 3 - Python
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
Solution 4 - Python
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)
Solution 5 - Python
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"
Solution 6 - Python
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)
Solution 7 - Python
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.
Solution 8 - Python
> 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)
Solution 9 - Python
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]
Solution 10 - Python
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