issue with datetime.strptime python

Question

This is my code:

import datetime
t1 = "Fri 11 Feb 2078 00:05:21"
t2 = "Mon 29 Dec 2064 03:33:48"
t3 = "Sat 02 May 2015 19:54:36"
t3_time = datetime.datetime.strptime(t3,"%a %d %B %Y %H:%M:%S")

print("debug")

t2_time = datetime.datetime.strptime(t2,"%a %d %B %Y %H:%M:%S")
t1_time = datetime.datetime.strptime(t1,"%a %d %B %Y %H:%M:%S")

error: ValueError: time data 'Mon 29 Dec 2064 03:33:48' does not match format '%a %d %B %Y %H:%M:%S'

Why t3 is getting parsed properly whereas t1 and t2 not getting parsed properly?

Guy · Accepted Answer · 2019-12-31 12:03:34Z

1

You need to give the full name of the month in your input

this should work

import datetime

t1 = "Fri 11 February 2078 00:05:21"
t2 = "Mon 29 December 2064 03:33:48"
t3 = "Sat 02 May 2015 19:54:36"   

print("debug")

t1_time = datetime.datetime.strptime(t1,"%a %d %B %Y %H:%M:%S")
t2_time = datetime.datetime.strptime(t2,"%a %d %B %Y %H:%M:%S")
t3_time = datetime.datetime.strptime(t3,"%a %d %B %Y %H:%M:%S")

Or just use %b instead of %B

import datetime

t1 = "Fri 11 Feb 2078 00:05:21"
t2 = "Mon 29 Dec 2064 03:33:48"
t3 = "Sat 02 May 2015 19:54:36"   

print("debug")

t1_time = datetime.datetime.strptime(t1,"%a %d %b %Y %H:%M:%S")
t2_time = datetime.datetime.strptime(t2,"%a %d %b %Y %H:%M:%S")
t3_time = datetime.datetime.strptime(t3,"%a %d %b %Y %H:%M:%S")

note that adding a textual day in your input won't change anything

for example

t4 = "Fri 02 May 2015 19:54:36"
t4_time = datetime.datetime.strptime(t4,"%a %d %B %Y %H:%M:%S")
print(t3_time == t4_time)

should return True

edited Dec 31, 2019 at 12:03

answered Dec 31, 2019 at 11:20

Guy

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2 Comments

Roland Smith Over a year ago

Alternatively, one could also use %b instead of %B. The important part is not to mix full and abbreviated month name.

Aditya Over a year ago

It worked perfectly. 'May' has 3 letter. I got confused with Dec and Feb. I was wondering what was wrong. Anyways, it worked. Thanks a lot. :)

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