CODEWITHSUNDEEP
python
user741592
user741592

Reputation: 925

Splitting a line with special character

I have a line which looks like this:

line ='timing                 [dash<try></example><try>x</trial>]           -122    µm'

I want to extract the -122 value.This is what I have written:

a = line.split("]")
b = a[1].split("x")
c= b[0].split("µm")
my_val = float(c[0].replace(" ", ""))

The "µ" seems to cause a problem here. And above code shows error if I compile it. Is there any idea to work with those special characters?

Small Edit:

I am reading the "line" from some file. I am using python 2.7.

Upvotes: 0

Views: 255

Answers (4)

Lukasz
Lukasz

Reputation: 196

Look at Python + Unicode tutorial. At first if you have any unicode characters use u e.g. It is safe to use u' ... ' for every string in your code. 

line = u'timing....'
c= b[0].split(u"µm")

Upvotes: 1

sundar nataraj
sundar nataraj

Reputation: 8702

import re

line ="asdfasd;l  lakfdalskd -122 asfdsd"
print re.findall(r'-\d+', line)

Upvotes: 0

Wazza
Wazza

Reputation: 106

I just ran your code in Python 3.3. 

print(my_val)

prints -122.

Upvotes: 1

DhruvPathak
DhruvPathak

Reputation: 43265

Works fine in python 2.7

>>> line ='timing                 [dash<try></example><try>x</trial>]           -122    µm'
>>> a = line.split("]")
>>> b = a[1].split("x")
>>> c= b[0].split("µm")
>>> a
['timing                 [dash<try></example><try>x</trial>', '           -122    \xc2\xb5m']
>>> b
['           -122    \xc2\xb5m']
>>> c
['           -122    ', '']
>>> c[0].replace(" ", "")
'-122'
>>> c[0].strip()
'-122'
>>> float(c[0].replace(" ", ""))
-122.0

Upvotes: 1

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