Python:Files

glob.glob(filespec)

Return a list of files matching 'filespec'.

Code example:

import glob
files = glob.glob(filespec)

open (filename,"r")

open filname for read and return the filehandle. Use w for write.

Code example:

import os
if os.path.isfile(filename):
    f1 =  open (filename,"r")

with open (filename,"r") as file

Open filename for read and close at the end of the loop

Code example:

with open (filename,"r") as file:
    for line in file:
        <codeblock>

f1.read(size)

Return 'size' bytest from the file as string if size is omited the entire file is returned.

f1.readlines(size)

list(f1)

Return ('size') lines from file as list.

Read through all files specified on the commandline. If there are no files on the commandline read standard input

import fileinput

for line in fileinput.input():
    <codeblock>

Read from standard input

Read from standard input

import sys

for line in sys.stdin:
    <codeblock>

Prompt and read from keyboard into a

a = input("Prompt: ")

In python2

a = raw_input("Prompt: ")