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Added cli interface which understand human language

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This commit is contained in:
Dominik Moritz Roth 2021-10-30 11:45:25 +02:00
parent 0632833bb9
commit 3e8512ae65
1 changed files with 35 additions and 2 deletions
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37
meuro.py
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@ -2,6 +2,8 @@
import requests
from datetime import datetime
from dateutil import relativedelta
from dateutil import parser as dparser
from dateutil.parser._parser import ParserError as DateParserError
# Ugly code thats outside of any function
url = 'https://sdw.ecb.europa.eu/quickviewexport.do?SERIES_KEY=122.ICP.M.U2.N.000000.4.ANR&type=csv'
@ -55,12 +57,12 @@ def exchangeRate(date=None):
# Converts the given amount of euros to meuros for the given date. (wholeCents means it rounds to two decimal places)
# date should be either a datetime-object or None (= current date)
def euroToMeuro(eur,date=None,wholeCents=True):
return round(eur * factorForDate(date),[64,2][wholeCents])
return round(eur * exchangeRate(date),[64,2][wholeCents])
# Converts the given amount of meuros to euros for the given date. (wholeCents means it rounds to two decimal places)
# date should be either a datetime-object or None (= current date)
def meuroToEuro(meur,date=None,wholeCents=True):
return round(meur / factorForDate(date),[64,2][wholeCents])
return round(meur / exchangeRate(date),[64,2][wholeCents])
# Print the current amount of meuros for the given amunt of euros every <interval>-seconds.
# Comes in handy when you want to watch your life savings slowly fade away thanks to inflation.
@ -69,3 +71,34 @@ def liveValue(eur,interval=10):
while True:
print(str(eur*exchangeRate())+'µ')
time.sleep(interval)
def _extractDate(s):
try:
return dparser.parse(s, fuzzy=True, dayfirst=True)
except DateParserError:
return datetime.now()
def cliInterface():
import sys, re
arg = " ".join(sys.argv[1:])
reFromEur = re.compile(r'(\d+(.\d\d)?)\W?(€|e|E)')
reFromMeur = re.compile(r'(\d+(.\d\d)?)\W?(μ|m|M)')
if (m := reFromEur.search(arg))!=None:
eurS = m.groups()[0]
date = _extractDate(arg.replace(eurS, '-'))
eur = float(eurS)
meur = euroToMeuro(eur, date)
print('Exchange rate for '+date.strftime("%d.%m.%Y at %H:%M")+':')
print(str(eur)+'€ = '+str(meur)+'µ')
elif (m:= reFromMeur.search(arg))!=None:
meurS = m.groups()[0]
date = _extractDate(arg.replace(meurS, '-'))
meur = float(meurS)
eur = euroToMeuro(meur, date)
print('Exchange rate for '+date.strftime("%d.%m.%Y at %H:%M")+':')
print(str(meur)+'µ = '+str(eur)+'€')
else:
print('[!] Unable to parse input')
if __name__=='__main__':
cliInterface()