CODEWITHSUNDEEP
python
Smooshface
Smooshface

Reputation: 23

Writing Data to an output file in Python

I am very new to scripting (this is my first one) and I'm trying to automate network tasks with python. I have built a script that takes a list of AP names from a text file and puts those ap names into the appropriate place within lines of configuration.

What I would really like is to have the final result saved to a file instead of printed to screen, and nothing I've tried yet has worked. Here's my script that prints to screen

f1=open("filename.txt","r")
Lines=f1.readlines()
for line in Lines:
line = line.strip()
    o1="ap name " + (line) + " lan port-id 1 enable"
    o2="ap name " + (line) + " lan port-id 2 enable"
    o3="ap name " + (line) + " lan port-id 3 enable"
    print(o1)
    print(o2)
    print(o3)

f1.close()

So, this works but then I'm having to copy paste it out of the print. I'd love to have it automatically export to a text file, but none of the things I've tried yet have worked. Thanks for the help!

Upvotes: 2

Views: 637

Answers (2)

chepner
chepner

Reputation: 531145

You just need to open a file for writing and tell print to use that file via the file argument, instead of sys.stdout.

with open("filename.txt", "r") as input, open("newfile", "w") as output:
    for line in input:
        line = line.strip()
        for i in [1,2,3]:
            print(f"ap name {line} lan port-id {i} enable", file=output)

Upvotes: 1

Sharan
Sharan

Reputation: 731

The problem maybe with you opening in "w" mode as it erases and rewrites. Try "a" mode.

f1=open("filename.txt","r")
Lines=f1.readlines()
for line in Lines:
line = line.strip()
    o1="ap name " + (line) + " lan port-id 1 enable"
    o2="ap name " + (line) + " lan port-id 2 enable"
    o3="ap name " + (line) + " lan port-id 3 enable"
    print(o1)
    print(o2)
    print(o3)
    f2 = open("result.txt","a")
    f2.write("o1: %s\n" % o1)
    f2.write("o2: %s\n" % o2)
    f2.write("o3: %s\n" % o3)
    f2.close()

f1.close()

Upvotes: 0

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