Finished chapter 8

chenguohui · chenguohui · commit bdf93787f304 · 2017-06-30T16:28:29.000+08:00
diff --git a/08-file/bacon.txt b/08-file/bacon.txt
@@ -0,0 +1,2 @@
+Hello world!
+Bacon is not a vegetable.
diff --git a/08-file/baconFile.py b/08-file/baconFile.py
@@ -0,0 +1,15 @@
+import os
+
+baconFile = open('bacon.txt', 'w')
+baconFile.write('Hello world!\n')
+baconFile.close()
+
+baconFile = open('bacon.txt', 'a')
+baconFile.write('Bacon is not a vegetable.')
+baconFile.close()
+
+baconFile = open('bacon.txt')
+content = baconFile.read()
+baconFile.close()
+
+print(content)
diff --git a/08-file/find.py b/08-file/find.py
@@ -0,0 +1,27 @@
+import os
+import re
+import sys
+
+
+def getTxtFile(directory):    
+    txts = []
+    txtSuffix = r'\.txt$'
+    txtRegex = re.compile(txtSuffix)
+    for filename in os.listdir(directory):
+        mo = txtRegex.search(filename)
+        if mo:
+            txts.append(filename)
+    return txts
+
+def find(query, directory):
+    txts = getTxtFile(directory)
+    print(txts)
+    queryRegex = re.compile(query)
+    for txt in txts:
+        with open(txt) as f:
+            for line in f:
+                mo = queryRegex.search(line)
+                if mo:
+                    print(txt.ljust(20) + ": " + line, end='')
+
+find("world", ".")
diff --git a/08-file/madlibs.py b/08-file/madlibs.py
@@ -0,0 +1,17 @@
+import re
+
+text = "The ADJECTIVE panda walked to the NOUN and then VERB. A nearby NOUN was unaffected by these events."
+
+regex = '[A-Z]{2,}'
+wordsRegex = re.compile(regex)
+
+while True:
+    mo = wordsRegex.search(text)
+    if mo == None:
+        #print('No words to be replaced.')
+        break
+    word = input('Enter an ' + mo.group().lower() + ':\n')
+    text = wordsRegex.sub(' '+word, text, count=1)
+
+print(text)
+   
diff --git a/08-file/mcb.bak b/08-file/mcb.bak
@@ -0,0 +1 @@
+'b', (512, 17)
diff --git a/08-file/mcb.dat b/08-file/mcb.dat
diff --git a/08-file/mcb.dir b/08-file/mcb.dir
@@ -0,0 +1 @@
+'b', (512, 17)
diff --git a/08-file/mcb.pyw b/08-file/mcb.pyw
@@ -0,0 +1,24 @@
+#! python3
+# mcb.pyw - Saves and loads pieces of text to the clipboard.
+# Usage: py.exe mcb.pyw save <keyword> - Saves clipboard to keyword.
+#        py.exe mcb.pyw <keyword> - Loads keyword to clipboard.
+#        py.exe mcb.pyw list - Loads all keywords to clipboard.
+
+import shelve, pyperclip, sys
+
+mcbShelf = shelve.open('mcb')
+
+# Save clipboard content.
+if len(sys.argv) == 3:
+    if sys.argv[1].lower() == 'save':
+        mcbShelf[sys.argv[2]] = pyperclip.paste()
+    elif sys.argv[1].lower() == 'delete':
+        del mcbShelf[sys.argv[2]]
+elif len(sys.argv) == 2:
+# List keywords and load content.
+    if sys.argv[1].lower() == 'list':
+        pyperclip.copy(str(list(mcbShelf.keys())))
+    elif sys.argv[1] in mcbShelf:
+        pyperclip.copy(mcbShelf[sys.argv[1]])
+
+mcbShelf.close()
diff --git a/08-file/myCats.py b/08-file/myCats.py
@@ -0,0 +1 @@
+cats = [{'desc': 'chubby', 'name': 'Zophie'}, {'desc': 'fluffy', 'name': 'Pooka'}]
diff --git a/08-file/mydata.bak b/08-file/mydata.bak
@@ -0,0 +1 @@
+'cats', (0, 45)
diff --git a/08-file/mydata.dat b/08-file/mydata.dat
diff --git a/08-file/mydata.dir b/08-file/mydata.dir
@@ -0,0 +1 @@
+'cats', (0, 45)
diff --git a/08-file/pprintDemo.py b/08-file/pprintDemo.py
@@ -0,0 +1,8 @@
+import pprint
+
+cats = [{'name': 'Zophie', 'desc': 'chubby'}, {'name': 'Pooka', 'desc': 'fluffy'}]
+pprint.pformat(cats)
+
+fileObj = open('myCats.py', 'w')
+fileObj.write('cats = ' + pprint.pformat(cats) + '\n')
+fileObj.close()
diff --git a/08-file/randomQuizGenerator.py b/08-file/randomQuizGenerator.py
@@ -0,0 +1,59 @@
+#! python3
+# randomQuizGenerator.py - Creates quizzes with questions and answers in
+# random order, along with the answer key.
+
+import random
+import os
+
+# The quiz data. Keys are states and values are their capitals.
+capitals = {'Alabama': 'Montgomery', 'Alaska': 'Juneau', 'Arizona': 'Phoenix', 'Arkansas': 'Little Rock', 'California': 'Sacramento', 'Colorado': 'Denver', 'Connecticut': 'Hartford', 'Delaware': 'Dover', 'Florida': 'Tallahassee', 'Georgia': 'Atlanta', 'Hawaii': 'Honolulu', 'Idaho': 'Boise', 'Illinois': 'Springfield', 'Indiana': 'Indianapolis', 'Iowa': 'Des Moines', 'Kansas': 'Topeka', 'Kentucky': 'Frankfort', 'Louisiana': 'Baton Rouge', 'Maine': 'Augusta', 'Maryland': 'Annapolis', 'Massachusetts': 'Boston', 'Michigan': 'Lansing', 'Minnesota': 'Saint Paul', 'Mississippi': 'Jackson', 'Missouri': 'Jefferson City',
+            'Montana': 'Helena', 'Nebraska': 'Lincoln', 'Nevada': 'Carson City', 'New Hampshire': 'Concord', 'New Jersey': 'Trenton', 'New Mexico': 'Santa Fe', 'New York': 'Albany', 'North Carolina': 'Raleigh', 'North Dakota': 'Bismarck', 'Ohio': 'Columbus', 'Oklahoma': 'Oklahoma City', 'Oregon': 'Salem', 'Pennsylvania': 'Harrisburg', 'Rhode Island': 'Providence', 'South Carolina': 'Columbia', 'South Dakota': 'Pierre', 'Tennessee': 'Nashville', 'Texas': 'Austin', 'Utah': 'Salt Lake City', 'Vermont': 'Montpelier', 'Virginia': 'Richmond', 'Washington': 'Olympia', 'West Virginia': 'Charleston', 'Wisconsin': 'Madison', 'Wyoming': 'Cheyenne'}
+capitalsItems = list(capitals.items())
+
+# Generate 35 quiz files.
+for quizNum in range(35):
+    # Create a directory for storing files.
+    directory = 'QuizAndAnswers'
+    if not os.path.exists(directory):
+        os.mkdir(directory)
+    
+    # Create the quiz and answer key files.
+    quizFile = open('%s/capitalsquiz%s.txt' % (directory, quizNum + 1), 'w')
+    answerKeyFile = open('%s/capitalsquiz_answers%s.txt' % (directory, quizNum + 1), 'w')
+
+    # Write out the header for the quiz.
+    quizFile.write('Name:\n\nDate:\n\nPeriod:\n\n')
+    quizFile.write((' ' * 20) + 'State Capitals Quiz (Form %s)' %
+                   (quizNum + 1))
+    quizFile.write('\n\n')
+
+    # Shuffle the order of the states.
+    states = list(capitals.keys())  # get all states in a list
+    random.shuffle(states)  # randomize the order of the states
+
+    # Loop through all 50 states, making a question for each.
+    for questionNum in range(50):
+
+        # Get right and wrong answers.
+        correctAnswer = capitals[states[questionNum]]
+        # get a complete list of answers
+        wrongAnswers = list(capitals.values())
+        # remove the right answer
+        del wrongAnswers[wrongAnswers.index(correctAnswer)]
+        wrongAnswers = random.sample(wrongAnswers, 3)  # pick 3 random ones
+
+        answerOptions = wrongAnswers + [correctAnswer]
+        random.shuffle(answerOptions)  # randomize the order of the answers
+
+        # Write the question and answer options to the quiz file.
+        quizFile.write('%s. What is the capital of %s?\n' %
+                       (questionNum + 1, states[questionNum]))
+        for i in range(4):
+            quizFile.write('    %s. %s\n' % ('ABCD'[i], answerOptions[i]))
+        quizFile.write('\n')
+
+        # Write out the answer key to a file.
+        answerKeyFile.write('%s. %s\n' % (
+            questionNum + 1, 'ABCD'[answerOptions.index(correctAnswer)]))
+    quizFile.close()
+    answerKeyFile.close()
diff --git a/08-file/shelfFile.py b/08-file/shelfFile.py
@@ -0,0 +1,12 @@
+import shelve
+
+# save data to shelf file
+shelfFile = shelve.open('mydata')
+cats = ['Zophie', 'Pooka', 'Simon']
+shelfFile['cats'] = cats
+shelfFile.close()
+
+# read data from shelf file
+shelfFile = shelve.open('mydata')
+print(shelfFile['cats'])
+shelfFile.close()
diff --git a/08-file/sonnet29.txt b/08-file/sonnet29.txt
@@ -0,0 +1,5 @@
+When, in disgrace with fortune and men's eyes,
+I all alone beweep my outcast state,
+And trouble deaf heaven with my bootless cries,
+And look upon myself and curse my fate,
+hello world

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	`+Hello world!`
	`2`	`+Bacon is not a vegetable.`
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+cats = [{'desc': 'chubby', 'name': 'Zophie'}, {'desc': 'fluffy', 'name': 'Pooka'}]`