Final assignmetn 8 almost done

les 8/8-1.py

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+#!/usr/bin/env python3
+#title          :8-1.py
+#description    :Opdracht 8.1 - While-loop & numbers
+#author         :Marcel Haazen
+#email          :marcel@haazen.xyz
+#date           :28-10-2019 - 13:10
+#version        :0.1
+#usage          :python3 8-1.py
+#notes          :
+#python_version :3.7.3
+#==============================================================================
+nl = []
+n = None
+i = 0
+while n != 0:
+    n = int(input("Voer een nummer in: "))
+    nl.append(n)
+    i += 1
+print("er zijn", i-1 ,"getallen ingevoerd, de som is:", sum(nl))

les 8/8-4.py

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+#!/usr/bin/env python3
+#title          :8-4.py
+#description    :Opdracht 8.4 - File & dict
+#author         :Marcel Haazen
+#email          :marcel@haazen.xyz
+#date           :28-10-2019 - 13:20
+#version        :0.1
+#usage          :python3 8-4.py
+#notes          :
+#python_version :3.7.3
+#==============================================================================
+def ticker():
+    filename = 'tickers.txt'
+    tickers = {}
+    with open(filename) as fh:
+        for line in fh:
+            company, ticker = line.strip().split(':', 1)
+            tickers[company] = ticker.strip()
+    return tickers
+try:
+    comp = str(input("Enter Company name: ")).upper()
+    print((ticker())[comp])
+except KeyError as identifier:
+    print("Dit bedrijf in onbekend.")
+
+try:
+    tick = comp = str(input("Enter Ticker symbol: ")).upper()
+    print([key for key in ticker().items() if key[1] == tick][0][0])
+except StopIteration as identifier:
+    print("Dit bedrijf in onbekend.")

les 8/tickers.txt

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+YAHOO:YHOO
+GOOGLE INC:GOOG
+Harley-Davidson:HOG
+Yamana Gold:AUY
+Sotheby's:BID
+inBev:BUD