In the loop below, content is a list containing an unknown amount of strings. each string contains a name with a set of numbers after the name, each delimited by a space. I am trying to use split to put the name and each score into a variable but I am having trouble because each name has a variable amount of scores. How would I be able to do this without knowing how many scores each name will have?
for i in content:
name, score1, score2 = i.split()
print name, score1, score2
You can use slicing for assignment :
for i in content:
s=i.split()
name,scores=s[0],s[1:]
At the end you'll have the name in name variable and list of scores in scores.
In python 3 you can use star expressions :
for i in content:
name,*scores=i.split()
You can use Extended Iterable Unpacking
content = ['this 3 5 2', 'that 3 5']
for i in content:
name, *score = i.split()
print(name, score)
This is Python 3.x compatible only.
For Python 2.x,
content = ['this 3 5 2', 'that 3 5']
for i in content:
splitted_content = i.split()
name, dynamic_score = splitted_content[0], splitted_content[1:]
print name, dynamic_score
This slicing algorithm in Python 2.x
first, rest = seq[0], seq[1:]
is replaced by the cleaner and probably more efficient:
first, *rest = seq
I like @kasra's answer above because it works for Python 2.x and 3.x (not enough points yet to comment on Kasra's post)
Just adding in some sample code to illustrate for anyone else who might be wondering:
#!/usr/bin/env python
# coding: utf-8
fi = open('bowling_scores.txt','r')
for line in fi:
if len(line) > 1: #skip blank rows
rec=line.split(' ') #subst any delimiter, or just use split() for space
bowler,scores=rec[0],rec[1:]
print bowler, scores
fi.close()
With an input file bowling_scores.txt like this:
John 210 199 287 300 291
Paul 188 165 200
George 177 201
Ringo 255 189 201 300
Yoko 44
Brian
Would give you output like this:
John ['210', '199', '287', '300', '291']
Paul ['188', '165', '200']
George ['177', '201']
Ringo ['255', '189', '201', '300']
Yoko ['44']
Brian []
for i in content:
print i.split(" ")[0],i.split(" ")[1],i.split(" ")[2]
split returns a list, so you have to index to get the values.
