CODEWITHSUNDEEP
pythonscripting
Rahul Arora
Rahul Arora

Reputation: 55

How to make output to a single line from multi line. Can we do it using generators as well?

Please have a look to the below output :-

Software_Engineer: 
Networking
Software_Engineering
Computer_Graphics
Development
Design

Mechanical_Engineer:
Automata
(There is a new line character here)

I want output should be as :-

Software_Engineer: Networking Software_Engineering Computer_Graphics Development Design

Mechanical_Engineer: Automata

I wrote below code in python as of now :-

with open("split_module.txt") as f:
    all_lines = f.readlines()
    keys_col1 = []
    values_col2 = []
    for ids, values in enumerate(all_lines):
        if ":" in all_lines[ids] and all_lines[ids+1] != "\n":
            keys_col1.append(values.strip())
            for value in keys_col1:
                print(value)

I am now getting output as :-

Software_Engineer:
Software_Engineer:
Mechanical_Engineer:

Here, Why "Software_Engineer:" is repeating two times and how can I able to get output as :-

Software_Engineer: Networking Software_Engineering Computer_Graphics Development Design

Mechanical_Engineer: Automata

Please suggest as I am new to Python.... Thanks..!!

Upvotes: 1

Views: 45

Answers (3)

Rahul Arora
Rahul Arora

Reputation: 55

I got the desired output by :-

fle=open("C:\Python27\projects\infile.txt")
fle2=open("C:\Python27\projects\outfile.txt",'w')
lst=fle.readlines()
for i in lst:
    i=i.strip()
    if i.endswith(':'):
        fle2.write("\n")
        fle2.write(i)
    else:
        fle2.write(i)
        fle2.write(" ")
fle.close()
fle2.close()

Thanks for help..

Upvotes: 0

Sedy Vlk
Sedy Vlk

Reputation: 565

Quick and dirty 

def f1(txt):
     buffer = ""
     for ee in txt.splitlines():
         if ee.endswith(':'):
             if buffer:
                 yield buffer.strip()
             buffer = ""
         buffer += ee + " "
     yield buffer.strip()

then you can for 

for i in f1(txt):
    print(i)

you would use the same idea to read the data from file i wrote is as if this was all in string

Upvotes: 0

Sandeep Lade
Sandeep Lade

Reputation: 1943

Try this code

fle=open("C:\Python27\projects\infile.txt")
fle2=open("C:\Python27\projects\outfile.txt",'w')
lst=fle.readlines()
for i in lst:
    i=i.strip()
    if i.endswith(':'):
        fle2.write("\n")
        fle2.write(i)
    else:
        fle2.write(i)
        fle2.write(" ")
fle.close()
fle2.close()

COntent of outflie.txt

Software_Engineer:Networking Software_Engineering Computer_Graphics Development Design  
Mechanical_Engineer:Automata

Upvotes: 1

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