Remove last character if it's a backslash
PythonStringPython Problem Overview
Is there a function to chomp last character in the string if it's some special character? For example, I need to remove backslash if it's there, and do nothing, if not. I know I can do it with regex easily, but wonder if there something like a small built-in function for that.
Python Solutions
Solution 1 - Python
Use rstrip to strip the specified character(s) from the right side of the string.
my_string = my_string.rstrip('\\')
See: http://docs.python.org/library/stdtypes.html#str.rstrip
Solution 2 - Python
If you don't mind all trailing backslashes being removed, you can use string.rstrip()
For example:
x = '\\abc\\'
print x.rstrip('\\')
prints:
\abc
But there is a slight problem with this (based on how your question is worded): This will strip ALL trailing backslashes. If you really only want the LAST character to be stripped, you can do something like this:
if x[-1] == '\\': x = x[:-1]
Solution 3 - Python
If you only want to remove one backslash in the case of multiple, do something like:
s = s[:-1] if s.endswith('\\') else s
Solution 4 - Python
if s.endswith('\\'):
s = s[:-1]
Solution 5 - Python
The rstrip function will remove more than just the last character, though. It will remove all backslashes from the end of the string. Here's a simple if statement that will remove just the last character:
if s[-1] == '\\':
s = s[:-1]
Solution 6 - Python
Or not so beautiful(don't beat me) but also works:
stripSlash = lambda strVal: strVal[:-1] if strVal.endswith('\\') else strVal
stripSlash('sample string with slash\\')
And yes - rstrip is better. Just want to try.
Solution 7 - Python
We can use built-in function replace
my_str.replace(my_char,'')
my_chars = '\\'
my_str = my_str.replace(my_char,'')
This will replace all \ in my_str
my_str.replace(my_chars, '',i)
my_char = '\\'
my_str = 'AB\CD\EF\GH\IJ\KL'
print ("Original my_str : "+ my_str)
for i in range(8):
print ("Replace '\\' %s times" %(i))
print(" Result : "+my_str.replace(my_chars, '',i))
This will replace \ in my_str i times Now you can control how many times you want to replace it with i
Output:
Original my_str : AB\CD\EF\GH\IJ\KL
Replace '\' 0 times
Result : AB\CD\EF\GH\IJ\KL
Replace '\' 1 times
Result : ABCD\EF\GH\IJ\KL
Replace '\' 2 times
Result : ABCDEF\GH\IJ\KL
Replace '\' 3 times
Result : ABCDEFGH\IJ\KL
Replace '\' 4 times
Result : ABCDEFGHIJ\KL
Replace '\' 5 times
Result : ABCDEFGHIJKL
Replace '\' 6 times
Result : ABCDEFGHIJKL
Replace '\' 7 times
Result : ABCDEFGHIJKL
Solution 8 - Python
For C# people who end up here:
my_string = my_string.TrimEnd('\\');