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Commit e086e9f

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‎C8_mad_libs.py

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"""
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Create a Mad Libs program that reads in text files and lets the user add
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their own text anywhere the word ADJECTIVE, NOUN, ADVERB, or VERB
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appears in the text file. For example, a text file may look like this:
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The ADJECTIVE panda walked to the NOUN and then VERB. A nearby NOUN was
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unaffected by these events.
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The program would find these occurrences and prompt the user to
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replace them.
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Enter an adjective:
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silly
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Enter a noun:
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chandelier
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Enter a verb:
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screamed
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Enter a noun:
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pickup truck
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The following text file would then be created:
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The silly panda walked to the chandelier and then screamed. A nearby pickup
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truck was unaffected by these events.
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The results should be printed to the screen and saved to a new text file.
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"""
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import re
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file = open('.\\files\\c8_text.txt', 'r')
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content = file.read()
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mad_lib_words = list(content.split())
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file.close()
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adj_regex = re.compile(r'ADJECTIVE')
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noun_regex = re.compile(r'NOUN')
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adv_regex = re.compile(r'ADVERB')
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verb_regex = re.compile(r'VERB')
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result_file = open('.\\files\\c8_text_result.txt', 'w')
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result_string = ""
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for word in mad_lib_words:
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if adj_regex.match(word):
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word = adj_regex.sub(input("Give an adjective: "), word)
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elif noun_regex.match(word):
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word = noun_regex.sub(input("Give a noun: "), word)
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elif verb_regex.match(word):
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word = verb_regex.sub(input("Give a verb: "), word)
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elif adv_regex.match(word):
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word = adv_regex.sub(input("Give a adverb: "), word)
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result_string += word + " "
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result_file.write(word + " ")
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print(result_string)
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result_file.close()

‎C8_regex_search.py

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"""
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Write a program that opens all .txt files in a folder and searches for any
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line that matches a user-supplied regular expression. The results should
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be printed to the screen.
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"""
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import os
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import re
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dir_files = os.listdir('.\\files\\c8_dir')
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print('What text do you want to search for?')
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user_regex = re.compile(str(input()))
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file_regex = re.compile(r'\w+\.txt$')
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for i in range(len(dir_files)):
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if file_regex.match(dir_files[i]):
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file = open('.\\files\\c8_dir\\' + dir_files[i])
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content = file.readlines()
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for line in range(len(content)):
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if user_regex.search(content[line]):
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print(content[line])
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file.close()

‎C9_backing_up_a_folder.py

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‎C9_remove_zeros.py

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"""
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Remove the zeros from files such as spam0042.txt
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"""
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import os
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import re
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zeros_regex = re.compile(r'0')
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os.chdir(".\\files\\c9_remove_zeros\\")
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for folderName, subfolders, filenames in os.walk('.'):
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for filename in filenames:
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if zeros_regex.search(filename):
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filename_new = zeros_regex.sub('', filename)
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abs_path = os.path.abspath(folderName)
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os.rename(os.path.join(abs_path, filename), os.path.join(abs_path, filename_new))
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‎C9_renameDates.py

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"""
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Say your boss emails you thousands of files with American-style dates
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(MM-DD-YYYY) in their names and needs them renamed to Europeanstyle
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dates (DD-MM-YYYY). This boring task could take all day to do by
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hand! Let’s write a program to do it instead.
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Here’s what the program does:
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• It searches all the filenames in the current working directory for
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American-style dates.
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• When one is found, it renames the file with the month and day swapped
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to make it European-style.
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"""
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import os
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import re
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import shutil
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# Create a regex that matches files with the American date format.
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date_pattern = re.compile(r"""^(.*?)
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(([01])?\d)- # one or two digits for the month
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(([0123])?\d)- # one or two digits for the day
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((19|20)\d\d) # four digits for the year
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(.*?)$ # all text after the date
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""", re.VERBOSE)
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# Loop over the files in the working directory.
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os.chdir('.\\files\\c9_dates')
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for amer_filename in os.listdir('.'):
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mo = date_pattern.search(amer_filename)
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# Skip files without a date.
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if mo is None:
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continue
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# Get the different parts of the filename.
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beforePart = mo.group(1)
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monthPart = mo.group(2)
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dayPart = mo.group(4)
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yearPart = mo.group(6)
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afterPart = mo.group(8)
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# Form the European-style filename.
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euro_filename = beforePart + dayPart + '-' + monthPart + '-' + yearPart + afterPart
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# Get the full, absolute file paths.
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abs_working_dir = os.path.abspath('.')
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amer_filename = os.path.join(abs_working_dir, amer_filename)
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euro_filename = os.path.join(abs_working_dir, euro_filename)
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# Rename the files.
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shutil.move(amer_filename, euro_filename)

‎files/c8_dir/test1.txt

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Write
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a program that opens all .txt files in a folder and searches for any
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line
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test!
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that matches a user-supplied regular expression. The results should
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be printed to the screen.
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here

‎files/c8_dir/test2.txt

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here
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is
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test!
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the
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second test

‎files/c8_text.txt

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The ADJECTIVE panda walked to the NOUN and then VERB. A nearby NOUN was
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unaffected by these events.

‎files/c8_text_result.txt

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The silly panda walked to the chandelier and then screamed. A nearby pickup truck was unaffected by these events.

‎files/c9_dates/03-27-2018.txt

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