I'm trying to write to a file, with the first line being [0] in the list, 2nd line being [1], etc.
Here's a quick example
crimefile = open('C:\states.csv', 'r')
b = crimefile.read()
l = b.splitlines()
print l[1]
states = open('c:\states.txt', 'w')
states.write('"abc"' + " " + '%s' '\n' %l[0+=])
states.close()
I'm really new to loops in Python and I am not too sure about loops and how to increase integers during loops, basically.
use enumerate():
for ind,line in enumerate(l):
print ind,line
example:
In [55]: lis=['a','b','c','d','e','f']
In [57]: for i,x in enumerate(lis):
print i,x
....:
....:
0 a
1 b
2 c
3 d
4 e
5 f
or using len() and xrange():
In [59]: for i in xrange(len(lis)): #use range() in case of python 3.x
....: print i,lis[i]
....:
....:
0 a
1 b
2 c
3 d
4 e
This is the 'pythonic' solution:
l = ['a', 'b', 'c', 'd']
with open('outfile', 'w') as f:
f.write('\n'.join(l))
I am not sure about your 'abc' stuff, but considering you need that, this would be a solution:
'\n'.join(['"abc" %s' % e for e in l])
'\n'.join is that you don't get the \n character at the end, on the last line. Once or twice that's broken a processing tool which wasn't as robust as it should have been.I'm not really sure I got your question, but this is how i would solve it anyhow:
f = open('C:\states.csv', 'r')
states = open('c:\states.txt', 'w')
for line in f:
states.write('"abc" %s\n' % line)
f.close()
states.close()
with open(<filename>) as file context manager syntax, then you wouldn't have to worry about explicitly close the file