CODEWITHSUNDEEP
pythonstringtrim
fpena06
fpena06

Reputation: 2426

How to remove leading and trailing spaces from a string?

I'm having a hard time trying to use .strip with the following line of code:

f.write(re.split("Tech ID:|Name:|Account #:",line)[-1])

Upvotes: 167

Views: 223075

Answers (4)

Anshuma
Anshuma

Reputation: 3472

You can use the strip() method to remove trailing and leading spaces:

>>> s = '   abd cde   '
>>> s.strip()
'abd cde'

Note: the internal spaces are preserved.

Upvotes: 314

Joshua Hall
Joshua Hall

Reputation: 342

Starting file:

     line 1
   line 2
line 3  
      line 4

Code:

with open("filename.txt", "r") as f:
    lines = f.readlines()
    for line in lines:
        stripped = line.strip()
        print(stripped)

Output:

line 1
line 2
line 3
line 4

Upvotes: 2

inverted_index
inverted_index

Reputation: 2437

Should be noted that strip() method would trim any leading and trailing whitespace characters from the string (if there is no passed-in argument). If you want to trim space character(s), while keeping the others (like newline), this answer might be helpful:

sample = '  some string\n'
sample_modified = sample.strip(' ')

print(sample_modified)  # will print 'some string\n'

strip([chars]): You can pass in optional characters to strip([chars]) method. Python will look for occurrences of these characters and trim the given string accordingly.

Upvotes: 5

Li-aung Yip
Li-aung Yip

Reputation: 12486

Expand your one liner into multiple lines. Then it becomes easy:

f.write(re.split("Tech ID:|Name:|Account #:",line)[-1])

parts = re.split("Tech ID:|Name:|Account #:",line)
wanted_part = parts[-1]
wanted_part_stripped = wanted_part.strip()
f.write(wanted_part_stripped)

Upvotes: 5

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