CODEWITHSUNDEEP
python
lapots
lapots

Reputation: 13395

python replace remove one tab from each line

For example I've got a file with lines like this

\tline1\t
\t\tline2\t
\t\tline3
\tline4

I need to remove only first tab in the beginning of every string(and I don't care if there are more tabs in the line) So the result suppose to look like this

line1\t
\tline2\t
\tline3
line4

How to do it?

Upvotes: 0

Views: 691

Answers (2)

bereal
bereal

Reputation: 34282

Regular expressions may help:

>>> import re
>>> pattern = re.compile('^\t')  # match a tab in the beginning of the line
>>> pattern.sub('', '\tline1\t')
'line1\t'
>>> pattern.sub('', '\t\tline2\t')
'\tline2\t'
>>> pattern.sub('', 'line3\t')
'line3\t'

Upvotes: 2

Johan
Johan

Reputation: 1693

s = "\thello"
s.replace("\t", "", 1)

Unsure if it's needed but this will handle stuff like `"hello\tworld" also, i.e. replace the first tab in the string disregarding where in the string it is

Upvotes: 3

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