Merge pull request #31 from DrAlias/master

Created code for tutorials 20, 22-24, and 28

Author: buckyroberts

Python/20_python.py

@@ -0,0 +1,4 @@
+classmates = {'Tony': ' cool but smells', 'Emma': ' sits behind me', 'Lucy': ' asks too many questions'}
+
+for k, v in classmates.items():
+    print(k + v)

Python/21_python_main.py

@@ -0,0 +1,7 @@
+import tuna_21
+import random
+
+tuna_21.fish()
+
+x = random.randrange(1, 1000)
+print(x)

Python/22_python.py

@@ -0,0 +1,9 @@
+import random
+import urllib.request
+
+def download_web_image(url):
+    name = random.randrange(1, 1000)
+    full_name = str(name) + ".jpg"
+    urllib.request.urlretrieve(url, full_name)
+
+download_web_image("https://www.thenewboston.com/images/homepage_images/main_homepage_01.png")

Python/23_python.py

@@ -0,0 +1,9 @@
+fw = open('sample.txt', 'w')
+fw.write('Writing some stuff in my text file\n')
+fw.write('I like bacon\n')
+fw.close()
+
+fr = open('sample.txt', 'r')
+text = fr.read()
+print(text)
+fr.close()

Python/24_python.py

@@ -0,0 +1,16 @@
+from urllib import request
+
+goog_url = http://real-chart.finance.yahoo.com/table.csv?s=GOOG&d=2&e=8&f=2015&g=d&a=2&b=27&c=2014&ignore=.csv
+
+def download_stock_data(csv_url):
+    response = request.urlopen(csv_url)
+    csv = response.read()
+    csv_str = str(csv)
+    lines = csv_str.split("\\n")
+    dest_url = r'goog.csv'
+    fx = open(dest_url, "w")
+    for line in lines:
+        fx.write(line + "\n")
+    fx.close()
+
+download_stock_data(goog_url)

Python/28_python.py

@@ -0,0 +1,13 @@
+while True:
+    try:
+        number = int(input("What's your fav number hoss?\n"))
+        print(18/number)
+        break
+    except ValueError:
+        print("Make sure and enter a number")
+    except ZeroDivisionError:
+        print("Don't pick zero")
+    except:
+        break
+    finally:
+        print("loop complete")

Python/tuna_21.py

@@ -0,0 +1,2 @@
+def fish():
+    print('I am a tuna feesh!')