A converter to convert from USA LibreView output to EU LibreView output

libreconverter.py

#A converter for LibreView exported data, can convert from European or USA output formats

import argparse

#TODO Setup argparse for changing conversion

#2018-13-1
#Currently this script accepts a USA input from argument 1 and converts it to European format.

import sys

def us_to_eu_date(string):
  string = string.split()
  h=0
  m=0
  (h,m)=string[1].split(':')
  if string[2]=='PM':
    if int(h) > 11: h=0
    h=str(int(h)+12)
    
  if string[2]=='AM':
    if h=='12': h='00'
    elif h=='10' or h=='11': pass
    else: h='0'+h 

  date=string[0].split('-')
  date=date[2]+'/'+date[0]+'/'+date[1]

  return date + ' ' + h+':'+m


def us_to_eu(fpath):
  lines = []
  with open(fpath,'r') as f:
    lines = f.readlines()

  l1 = lines[0].rstrip('\n').split(',')
  l2 = lines[1].rstrip('\n').split(',')
  lines = lines[2::]

  name = l1[-2]

  with open('converted.txt','w') as f:

    f.write(name+'\n')

    eu_header = "ID	Time\tRecord Type\tHistoric Glucose (mg/dL)\tScan Glucose (mg/dL)\tNon-numeric Rapid-Acting Insulin\tRapid-Acting Insulin (units)\tNon-numeric Food	Carbohydrates (grams)\tNon-numeric Long-Acting Insulin\tLong-Acting Insulin (units)\tNotes\tStrip Glucose (mg/dL)\tKetone (mmol/L)\tMeal Insulin (units)\tCorrection Insulin (units)\tUser Change Insulin (units)\tPrevious Time\tUpdated Time"

    f.write(eu_header+'\n')

    for line in lines:
      line = line.split(',')
      line = line[0]+'\t'+us_to_eu_date(line[2])+'\t0\t'+line[3].rstrip('\n')
      f.write(line+'\n')

  return

if __name__ == '__main__':
  fpath = sys.argv[1]

  us_to_eu(fpath)

Revision 2: Fixed issue where 12:xx PM was converting to 24:xx instead of 12:xx

Revision 4: Actually fixed time issues