Splitting an integer in python

Question

I'm new to python and trying to build a 10k running calculator from the exercises in "Think Python"

what I'm trying to do is break down the input time ie:43.12 into 2 separate numbers ... then perform (43x60)- which gives the seconds and then add the remaining seconds +12 .. to give the accurate number to work from ..

below is running it if i hardcode 4312 in as a whole number - but what id like to to accept it dynamically ... can somebody help point me in the right direction

#python 10k calculator

import time

distance = 6.211180124223602
time = float(input("what was your time?"))
tenK = 10
mile = 1.61
minute = 60
sph = 0

def convertToMiles():
    global distance
    distance = tenK / mile
convertToMiles()
print("Distance equal to :",distance)


def splitInput():
    test = [int(char) for char in str(4312)]
    print(test)
splitInput()

Not really sure what you're asking here. You're already using input to get the time value. — Daniel Roseman
– Daniel Roseman, Commented Jan 8, 2015 at 11:20

Aran-Fey · Accepted Answer · 2015-01-08 11:20:04Z

2

It's easier if you don't immediately call convert the user input to a float. Strings provide a split function, floats don't.

>>> time = input("what was your time? ")
what was your time? 42.12
>>> time= time.split('.')
>>> time
['42', '12']
>>> time= int(time[0])*60+int(time[1])
>>> time
2532

answered Jan 8, 2015 at 11:20

Aran-Fey

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1 Comment

Burhan Khalid Over a year ago

This will fail if the input has no seconds component.

Burhan Khalid · Accepted Answer · 2015-01-08 11:20:26Z

1

You are already converting the number into a float when you ask for it in the input; just accept it as a string and then you can easily separate it into its various parts:

user_input = input('what was your time?')
bits = user_input.split('.') # now bits[0] is the minute part,
                             # and bits[1] (if it exists) is
                             # the seconds part
minutes = int(bits[0])
seconds = 0
if len(bits) == 2:
    seconds = int(bits[1])

total_seconds = minute*60+seconds

answered Jan 8, 2015 at 11:20

Burhan Khalid

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Comments

Steve Barnes · Accepted Answer · 2015-01-08 11:34:45Z

0

I would have the user input a string in the format [hh:]mm:ss then use something like:

instr = raw_input('Enter your time: [hh:]mm:ss')
fields = instr.split(':')
time = 0.0
for field in fields:
   yourtime *= 60
   yourtime += int(field)
print("Time in seconds", yourtime)

But if you really need a time then you could use time.strptime().

answered Jan 8, 2015 at 11:34

Steve Barnes

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Comments

vks · Accepted Answer · 2015-01-08 11:38:17Z

0

import re
time = raw_input("what was your time? ")
x=re.match(r"^(\d+)(?:\.(\d+))$",str(time))
if x:
    time= int(x.group(1))*60+int(x.group(2))
    print time
else:
    print "Time format not correct."

Try this way.You can also add some error checking this way.

answered Jan 8, 2015 at 11:38

vks

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