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5702811203
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872df67776
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872df67776 | |||
237940861f |
1
.gitignore
vendored
1
.gitignore
vendored
@ -1 +1,2 @@
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__pycache__
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cache.json
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68
meuro.py
68
meuro.py
@ -1,34 +1,55 @@
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#!/usr/bin/python3
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import requests
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import requests, json, os.path
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from datetime import datetime
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from dateutil import relativedelta
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from dateutil import parser as dparser
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from dateutil.parser._parser import ParserError as DateParserError
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# Ugly code thats outside of any function
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url = 'https://sdw.ecb.europa.eu/quickviewexport.do?SERIES_KEY=122.ICP.M.U2.N.000000.4.ANR&type=csv'
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resp = requests.get(url)
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lines = resp.text.split('\n')[6:]
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years = {} # Will later contain the monthly factor of inflation (~1.0016667) for every month
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for line in lines:
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vals = line.split(',')
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year = int(vals[0][:4])
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month = datetime.strptime(vals[0][4:],'%b').month
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inflation = float(vals[1])
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if not year in years:
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years[year] = {}
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years[year][month] = 1 + (inflation/100)/12
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_years = None
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for year in years:
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months = years[year]
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for month in range(1,13):
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if month not in months:
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years[year][month] = 1 + 0.02/12 # Lets say the ECB archives their target
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def _loadYearsTable(maxCacheSeconds=3600):
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global _years
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if os.path.isfile('cache.json'):
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with open('cache.json', 'r') as f:
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cacheUpdate, cacheYears = json.loads(f.read())
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if (datetime.now() - dparser.isoparse(cacheUpdate)).total_seconds() < maxCacheSeconds:
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# JSON does not allow integers as keys; so we convert them back here...
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cacheYears = {int(y):{int(m):float(n) for m,n in ms.items()} for y,ms in cacheYears.items()}
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_years = cacheYears
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return
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_years = _loadYearsTableWeb()
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def _loadYearsTableWeb():
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print('[i] Fetching new data from ECB-Servers...')
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url = 'https://sdw.ecb.europa.eu/quickviewexport.do?SERIES_KEY=122.ICP.M.U2.N.000000.4.ANR&type=csv'
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resp = requests.get(url)
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lines = resp.text.split('\n')[6:]
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years = {} # Will later contain the monthly factor of inflation (~1.0016667) for every month
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for line in lines:
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vals = line.split(',')
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year = int(vals[0][:4])
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month = datetime.strptime(vals[0][4:],'%b').month
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inflation = float(vals[1])
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if not year in years:
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years[year] = {}
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years[year][month] = 1 + (inflation/100)/12
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for year in years:
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months = years[year]
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for month in range(1,13):
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if month not in months:
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years[year][month] = 1 + 0.02/12 # Lets say the ECB archives their target
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with open('cache.json', 'w') as f:
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f.write(json.dumps([datetime.now().isoformat(),years]))
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return years
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# Gives you the exchange rate between euros and meuros for the given date.
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# (Should always be a float < 1)
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# date should be either a datetime-object or None (= current date)
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def exchangeRate(date=None):
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global _years
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if _years==None:
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_loadYearsTable()
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if date==None:
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date = datetime.now()
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month, year = date.month, date.year
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@ -37,23 +58,24 @@ def exchangeRate(date=None):
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akk = 1
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for fullYear in range(2001, year):
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yearlyInf = 1
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for m in years[fullYear]:
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monthlyInf = years[fullYear][m]
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for m in _years[fullYear]:
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monthlyInf = _years[fullYear][m]
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yearlyInf *= monthlyInf
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akk *= yearlyInf
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for fullMonth in range(1, month):
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monthlyInf = years[year][fullMonth]
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monthlyInf = _years[year][fullMonth]
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akk *= monthlyInf
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beginningOfMonth = date.replace(hour=0, minute=0, second=0, microsecond=0, day=1)
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endOfMonth = beginningOfMonth + relativedelta.relativedelta(months=1)
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fracOfMonth = (date - beginningOfMonth).total_seconds() / (endOfMonth - beginningOfMonth).total_seconds()
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inflationThisMonth = 1 + fracOfMonth * (years[year][month]-1)
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inflationThisMonth = 1 + fracOfMonth * (_years[year][month]-1)
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akk *= inflationThisMonth
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return 1/akk
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# Converts the given amount of euros to meuros for the given date. (wholeCents means it rounds to two decimal places)
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# date should be either a datetime-object or None (= current date)
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def euroToMeuro(eur,date=None,wholeCents=True):
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