Help required to read and print lines based on the type of first character
gagsl-py2 at yahoo.com.ar
Wed Mar 4 12:36:10 CET 2009
En Wed, 04 Mar 2009 07:36:01 -0200, <Abhinayaraj.Raju at emulex.com> escribió:
> I am a beginner in Python. In fact, beginner to coding/ scripting.
> Here is a scenario, I need to code. Need your help on this:
> A script that
> 1. Reads from a file (may be a local file say test.txt)
> 2. And, if the line begins with a "#", should print the line one
> 3. if the line has "##", should print the line 2 times,
> 4. And, if there are "###" in the beginning of the line, should
> print the same line 3times,
> 5. And, if the line contains "####" or more "#"'s, then print as
> "an invalid line"
> 6. if the line contains no "#" then print "looks like a code line"
> For this as far the info I could understand,
> - We need to use open('TextFile.txt') function
> - Need to start a While loop/ For in loop
> - By some means individually read every single line and check for
> the above conditions
Start following the tutorial at http://docs.python.org/tut
You'll see it menctions a few ways to process a file; the cleanest
alternative to do it one line at a time is:
for line in some_file:
# do something with line
The interactive interpreter is great to experiment:
py> x = "some text"
py> y = "## another text"
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