Basically I had a large number of email addresses in a .txt file and needed find matches for a partial string match (@gmail.com for example) and put those into a new list to work with. This is the first time I've been able to use python for something really useful after I started to learn the language. Hopefully someone else can find a use for i…

ListPartialStringMatches

# open a .txt file and turn it into a list with variable name mylist
# that can be easily worked with in python

f = open('list1.txt','r')
mylist = list(f)

# saving that list into a new variable without line breaks
updatedlist = [l.replace('\n','') for l in mylist]


# global variable list to catch all the appended lookups
newlist = []


# function to look up partial string matches in each list item
# and add to the newlist global variable

def listlookup(name):


    for i, elem in enumerate(updatedlist):
        if name in elem:
            newlist.append(i)

#   run the below for loop in the python shell to output all the items that
#   matched the listlookup function 


#    for item in newlist:
#            updatedlist[item]