Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #37545

Re: Any algorithm to preserve whitespaces?

Show key headers only | View raw

On 1/24/13, Peter Otten <__peter__@web.de> wrote:
> Santosh Kumar wrote:
>
>> Yes, Peter got it right.
>>
>> Now, how can I replace:
>>
>>     script, givenfile = argv
>>
>> with something better that takes argv[1] as input file as well as
>> reads input from stdin.
>>
>> By input from stdin, I mean that currently when I do `cat foo.txt |
>> capitalizr` it throws a ValueError error:
>>
>>     Traceback (most recent call last):
>>       File "/home/santosh/bin/capitalizr", line 16, in <module>
>>         script, givenfile = argv
>>     ValueError: need more than 1 value to unpack
>>
>> I want both input methods.
>
> You can use argparse and its FileType:
>
> import argparse
> import sys
>
> parser = argparse.ArgumentParser()
> parser.add_argument("infile", type=argparse.FileType("r"), nargs="?",
> default=sys.stdin)
> args = parser.parse_args()
>
> for line in args.infile:
>     print line.strip().title() # replace with your code
>

This works file when I do `script.py inputfile.txt`; capitalizes as
expected. But it work unexpected if I do `cat inputfile.txt |
script.py`; leaves the first word of each line and then capitalizes
remaining.

Back to comp.lang.python | Previous | Next | Find similar | Unroll thread

Thread

Re: Any algorithm to preserve whitespaces? Santosh Kumar <sntshkmr60@gmail.com> - 2013-01-24 14:49 +0530

csiph-web