Python text replace with for loop

Question

I am just trying to remove all datetime values... but everytime it is going to the beginning and refreshing the text with the last value. How can i delete the all time values ?

My text file is hey.txt and this is the inside of it:

14:15
24:32
trying
42:56
1:42
for
testing

Code part:

import re
filename = "hey.txt"
text = open(filename).read()
n,i,c,x,=(0,0,0,0)
datetimes = []
for number in range(3600):
    n+=1
    b=str(n)
    if n<10:
        b = "0"+str(n)
    elif n==60:
        i+=1
        n=0 
    datetimes.append("%d:%s"%(i,b)) 
for word in datetimes:    
    matches = re.compile(word).finditer(text)
    for match in matches:
        z= match.group(0)
        print(z)
        if z==word:
            open("datetimes-doc.txt","w+").write(text.replace(z,""))
            c+=1
        elif z!=word:
            c+=1
        print("proccess:%d"%c)

and this is the my sending file datetimes-doc.txt

14:15
24:32
trying

1:42
for
testing

here is the some of output from console:

1:42
proccess:1
2:56
proccess:2
4:15
proccess:3
4:32
proccess:4
14:15
proccess:5
24:32
proccess:6
42:56
proccess:7

If your file is all times, and you want to remove them, why not just delete the file. If your file is not all datetimes, please provide an example to show what the other data looks like, in other words, an minimal reproducible example — user3483203
– user3483203, Commented Aug 30, 2018 at 2:18
Need more information. The output shown is what you expected or the result of your code? Are you trying to remove the hours and minutes? — MichaelR
– MichaelR, Commented Aug 30, 2018 at 2:21

VanTan · Accepted Answer · 2018-08-30 22:18:40Z

2

Rather than a for loop, why not:

#read entire file's content 
with open('hey.txt') as f:
    content = f.read()

# find time and replace with empty string
new_content = re.sub(r'[0-5]*[0-9]:[0-5]*[0-9]\n','', content)

#write results into file
with open('hey2.txt', 'w') as f:
    f.write(new_content)

edited Aug 30, 2018 at 22:18

answered Aug 30, 2018 at 22:11

VanTan

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