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Limit Lines of Output using python

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I've got a simple script that counts the number of words in a data set (it's more complicated than that, but that's one of the functions), but there are so many words that the output is too much to see in the command prompt window. What I'd like to be able to do is incorporate the "More..." feature that help libraries have, but I have no idea how to do it. I also don't know if I'm asking the question correctly because a Google search yielding nothing.

posted Jun 25, 2013 by anonymous

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I'm running Windows.

2 Answers

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If you are using linux, you should look up the comand less. It allows you to page thru a test file. You can either write your list to a file or pipe it into less (havent tried that myself)

answer Jun 25, 2013 by anonymous
0 votes

Supposedly, Windows has "more"

For Linux+less; this works:

from subprocess import Popen, PIPE
less = Popen("less", stdin=PIPE)
less.stdin.write(b"n".join("This is line number
{}".format(i).encode("UTF-8") for i in range(1000)))
answer Jun 25, 2013 by anonymous
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This question about breaking up really long lines of code in Python.

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I'm new to Django. Is there any tell how to add a limit filter in Django?

+1 vote

I want to build a class that perform various functions to the content(or lines) of any given file. I want to first include the opening and reading file function into that class, then add other methods.

Here is what I wrote for opening file and reading the lines:

class FileOpration:
 def __init__(self,name): = name
 self.filename =
 def readAllline(self):

file1 = FileOpration("myfile.txt")
print file1.filename
allines = file1.readAllline()
print allines

I define variable because I want to store the specific file that I read. This works fine by the test code of print file1.filename. I saw "myfile.txt" on the terminal output.

However, the readAllline() method dose not work. The code only give me "None" as the output on terminal