Hi all, hope you are well. Just a quick one here that you pythons will be able to answer in no time (I am new with python). What I am trying to do is read a text file and print only the first and last line of that file. Any ideas as to how I might go about this ? I have read the file so all i need to do is find a way of finding out which is first and last line, and then printing them. Thanks for your time.
majestic0110 187 Nearly a Posting Virtuoso
majestic0110 187 Nearly a Posting Virtuoso
Ok I have now established how to print the last line of a text file. Anyone interested here is where I found the answer:
http://www.daniweb.com/forums/showthread.php?t=24544&highlight=print+first+line
I still need to figure out how to print the first line of the text file, so any ideas on this are welcome!
majestic0110 187 Nearly a Posting Virtuoso
ok ignore the above link - it is a search link which doesnt seem to work. Here is the solution that I have worked out:
def lab01():
file = open('filename.txt','r')#specify file to open
data = file.readlines() #read lines in file and put
#into LIST called data
print "Last line = "
print data[len(data)-1] #-1 represents last item on list data
print "First line = "
file.seek ( 0 )#seek to first line in file
print file.readline()
file.close() #good practice to close files after use majestic0110 187 Nearly a Posting Virtuoso
Restructured the code to make it a little more elegant now:
def lab01():
file = open('swift20080428172404.txt','r')#specify file to open
data = file.readlines() #read lines in file and put into
#LIST called data
file.close() #good practice to close files after use
print "Last line = "
print data[len(data)-1] #-1 represents last item on list data
print "First line = "
print data[0] #-1 represents last item on list data Be a part of the DaniWeb community
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