Challenges

Reddit challenges in python language.

Files Code and Result

challenge1_easy

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challenge71_easy.py

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challenge220_easy.py

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challenge228_easy.py

challenge228_easydev

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challenge338_easy

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challenge118_easy

'''
Localization of software is the process of adapting code to handle special properties of
 a given language or a region's standardization of date / time formats.

As an example, in the United States it is common to write down a date first with the
month, then day, then year. In France, it is common to write down the day and then month,
then year.

Your goal is to write a function that takes a given string that defines how dates and
times should be ordered, and then print off the current date-time in that format.

Author: nint22
Formal Inputs & Outputs
Input Description

Your function must accept a string "Format". This string can have any set of characters
or text, but you must explicitly replace certain special-characters with their equivalent
date-time element. Those special characters, and what they map to, are as follows:

"%l": Milliseconds (000 to 999) "%s": Seconds (00 to 59) "%m": Minutes (00 to 59) "%h":
Hours (in 1 to 12 format) "%H": Hours (in 0 to 23 format) "%c": AM / PM (regardless of
hour-format) "%d": Day (1 up to 31) "%M": Month (1 to 12) "%y": Year (four-digit format)
Output Description

The output must be the given string, but with the appropriate date-time special-characters
replaced with the current date-time of your system. All other characters should be left
untouched.
Sample Inputs & Outputs
Sample Input

"%s.%l"
"%s:%m:%h %M/%d/%y"
"The minute is %m! The hour is %h."

Sample Output

"32.429"
"32:6:9 07/9/2013"
"The minute is 32! The hour is 6."

There are several standards for this kind of functionality in many software packages.
ISO has a well documented standard that follows similar rules, which this exercise is based on.
'''
''' It is a challenge so I will do it the long-winded way as an exercise  :) '''

import datetime
import re

dt = datetime.datetime
time_now = str(dt.now())

millisec = re.findall('\.\d+', time_now)
millisec = int(round(float(millisec[0]), 3) * 1000)
secs = re.findall('(\d+)\.', time_now)
hr_minute = re.findall('(\d+)\:', time_now)
day = re.findall('(\d+)\s', time_now)
month = re.findall('\d+\-(\d+)', time_now)
year = re.findall('^\d+', time_now)

codes = {
    '%l': millisec,
    '%s': secs[0],
    '%m': hr_minute[1],
    '%h': hr_minute[0],
    '%d': day[0],
    '%M': month[0],
    '%y': year[0]
}

ans = '%s.%l'
sec = re.findall('(%s)', ans)
milli = re.findall('(%l)', ans)
period = re.findall('\.', ans)

print('{0}{1}{2}'.format(codes['%s'], period[0], codes['%l']))
print('{3}{0}{4}{0}{5}{2}{6}{1}{7}{1}{8}'.format(':', '/', ' ', codes['%s'], codes['%m'],
                                     codes['%h'], codes['%M'],
                                     codes['%d'], codes['%y']))
print('{0}{4}{1}{2}{5}{3}'.format('The minute is ', '! ', 'The hour is ', '.', codes['%m'],
                          codes['%h']))

Result

22.413
22:40:11 09/26/2017
The minute is 40! The hour is 11.