Merge pull request #1 from geekcomputers/master

update for Feb 2017

Author: ramlaxman

CountMillionCharacter.py

@@ -1,7 +1,12 @@
-#test by kjin
-import pprint
-info = '''SCENE I. Yorkshire. Gaultree Forest.
+'''Simple million word count program.
+    main idea is Python pairs words
+    with the number of times
+    that number appears in the triple quoted string.
+    Credit to William J. Turkel and Adam Crymble for the word
+    frequency code used below. I just merged the two ideas.
+'''
 
+wordstring = '''SCENE I. Yorkshire. Gaultree Forest.
 Enter the ARCHBISHOP OF YORK, MOWBRAY, LORD HASTINGS, and others
 ARCHBISHOP OF YORK
 What is this forest call'd?
@@ -29,7 +34,6 @@
 Thus do the hopes we have in him touch ground
 And dash themselves to pieces.
 Enter a Messenger
-
 HASTINGS
 Now, what news?
 Messenger
@@ -43,7 +47,6 @@
 ARCHBISHOP OF YORK
 What well-appointed leader fronts us here?
 Enter WESTMORELAND
-
 MOWBRAY
 I think it is my Lord of Westmoreland.
 WESTMORELAND
@@ -226,7 +229,6 @@
 ARCHBISHOP OF YORK
 My lord, we will do so.
 Exit WESTMORELAND
-
 MOWBRAY
 There is a thing within my bosom tells me
 That no conditions of our peace can stand.
@@ -279,7 +281,6 @@
 Be it so.
 Here is return'd my Lord of Westmoreland.
 Re-enter WESTMORELAND
-
 WESTMORELAND
 The prince is here at hand: pleaseth your lordship
 To meet his grace just distance 'tween our armies.
@@ -288,9 +289,14 @@
 ARCHBISHOP OF YORK
 Before, and greet his grace: my lord, we come.
 Exeunt'''
-count = {}
-for character in info.upper():
-    count[character] = count.get(character, 0) + 1
 
-value = pprint.pformat(count)
-print(value)
+wordlist = wordstring.split()
+
+wordfreq = []
+for w in wordlist:
+    wordfreq.append(wordlist.count(w))
+
+print("String\n" + wordstring +"\n")
+print("List\n" + str(wordlist) + "\n")
+print("Frequencies\n" + str(wordfreq) + "\n")
+print("Pairs\n" + str(list(zip(wordlist, wordfreq))))

batch_file_rename.py

@@ -11,7 +11,7 @@
 
 import os
 import sys
-
+import argparse
 
 def batch_rename(work_dir, old_ext, new_ext):
     '''
@@ -24,25 +24,38 @@ def batch_rename(work_dir, old_ext, new_ext):
         file_ext = os.path.splitext(filename)[1]
         # Start of the logic to check the file extensions, if old_ext = file_ext
         if old_ext == file_ext:
-            # Set newfile to be the filename, replaced with the new extension
-            newfile = filename.replace(old_ext, new_ext)
+            # Returns changed name of the file with new extention
+            name_list=list(filename)
+            name_list[len(name_list)-len(old_ext):]=list(new_ext)
+            newfile=''.join(name_list)
+            
             # Write the files
             os.rename(
                 os.path.join(work_dir, filename),
                 os.path.join(work_dir, newfile)
             )
 
+def get_parser():
+    parser = argparse.ArgumentParser(description='change extension of files in a working directory')
+    parser.add_argument('work_dir', metavar='WORK_DIR', type=str, nargs=1, help='the directory where to change extension')
+    parser.add_argument('old_ext', metavar='OLD_EXT', type=str, nargs=1, help='old extension')
+    parser.add_argument('new_ext', metavar='NEW_EXT', type=str, nargs=1, help='new extension')
+    return parser
 
 def main():
     '''
     This will be called if the script is directly invoked.
     '''
+    # adding command line argument
+    parser = get_parser()
+    args = vars(parser.parse_args())
+
     # Set the variable work_dir with the first argument passed
-    work_dir = sys.argv[1]
+    work_dir = args['work_dir'][0]
     # Set the variable old_ext with the second argument passed
-    old_ext = sys.argv[2]
+    old_ext = args['old_ext'][0]
     # Set the variable new_ext with the third argument passed
-    new_ext = sys.argv[3]
+    new_ext = args['new_ext'][0]
 
     batch_rename(work_dir, old_ext, new_ext)