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Chapter 9 finished
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‎09-organize-file/README.md

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* shutil
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shell工具
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import shutil
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* send2trash
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将文件夹和文件发送到垃圾箱或回收站
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pip install send2trash
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* zipfile
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import zipfile

‎09-organize-file/backupToZip.py

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#! python3
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# backupToZip.py
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# Copies an entire folder and its contents into
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# a zip file whose filename increments.
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import zipfile, os
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def backupToZip(folder):
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# Backup the entire contents of "folder" into a zip file.
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folder = os.path.abspath(folder) # make sure folder is absolute
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# Figure out the filename this code should used based on
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# what files already exist.
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number = 1
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while True:
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zipFilename = os.path.basename(folder) + '_' + str(number) + '.zip'
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if not os.path.exists(zipFilename):
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break
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number = number + 1
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# Create the zip file.
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print('Creating %s...' % (zipFilename))
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backupZip = zipfile.ZipFile(zipFilename, 'w')
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# Walk the entire folder tree and compress the files in each folder.
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for foldername, subfolders, filenames in os.walk(folder):
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print('Adding files in %s...' % (foldername))
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# Add the current folder to the ZIP file.
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backupZip.write(foldername)
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# Add all the files in this folder to the ZIP file.
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for filename in filenames:
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if filename.startswith(os.path.basename(folder) + '_') and filename.endswith('.zip'):
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continue # don't backup the backup ZIP files
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backupZip.write(os.path.join(foldername, filename))
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backupZip.close()
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print('Done.')
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backupToZip('C:\\delicious')

‎09-organize-file/copy.py

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import os
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import sys
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import shutil
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def copy(suffix, src, dst):
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# Create dst directory
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if not os.path.exists(dst):
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os.mkdir(dst)
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# list all files
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try:
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for dirpath, dirnames, filenames in os.walk(src):
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#print(dirpath, dirnames, filenames)
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for filename in filenames:
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if filename.endswith('.'+suffix):
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print(os.path.join(dirpath, filename))
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# copy files with pointed suffix to dst
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shutil.copy(os.path.join(dirpath, filename), dst)
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except shutil.SameFileError:
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print("Finished copying file.")
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copy('py', '.', 'pyfiles')

‎09-organize-file/createZipFile.py

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import os
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import zipfile
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newZip = zipfile.ZipFile('new.zip', 'w')
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newZip.write('README.md', compress_type=zipfile.ZIP_DEFLATED)
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newZip.close()

‎09-organize-file/demo/spam001.txt

Whitespace-only changes.

‎09-organize-file/demo/spam003.txt

Whitespace-only changes.

‎09-organize-file/filesize.py

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import os
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import shutil
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def search(dir, size):
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# dir exists
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if not os.path.exists(dir):
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print('Directory ' + dir + ' not exists.')
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# list all files in dir
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for dirpath, dirnames, filenames in os.walk(dir):
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for filename in filenames:
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filepath = os.path.join(dirpath, filename)
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filesize = os.path.getsize(filepath)
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if filesize > size:
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print(str(filesize).ljust(16), filepath)
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# if filesize is bigger than size, print it's path
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search('E:\\', 1024*1024*1024)

‎09-organize-file/renameDates.py

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#! python3
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# renameDates.py - Renames filenames with American MM-DD-YYYY date format
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# to European DD-MM-YYYY.
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import shutil, os, re
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# Create a regex that matches files with the American date format.
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datePattern = re.compile(r"""^(.*?) # all text before the date
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((0|1)?\d)- # one or two digits for the month
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((0|1|2|3)?\d)- # one or two digits for the day
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((19|20)\d\d) # four digits for the year (must start with 19 or 20)
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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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for amerFilename in os.listdir('.'):
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mo = datePattern.search(amerFilename)
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# Skip files without a date.
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if mo == 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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euroFilename = beforePart + dayPart + '-' + monthPart + '-' + yearPart + afterPart
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# Get the full, absolute file paths.
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absWorkingDir = os.path.abspath('.')
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amerFilename = os.path.join(absWorkingDir, amerFilename)
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euroFilename = os.path.join(absWorkingDir, euroFilename)
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# Rename the files.
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print('Renaming "%s" to "%s"...' % (amerFilename, euroFilename))
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#shutil.move(amerFilename, euroFilename) # uncomment after testing

‎09-organize-file/send2trashDemo.py

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import send2trash
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baconFile = open('bacon.txt', 'a')
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baconFile.write('Bacon is not a vegetable.')
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baconFile.close()
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send2trash.send2trash('bacon.txt')

‎09-organize-file/sequence.py

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import os
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import shutil
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import re
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def sequence(dir, prefix):
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# dir exists
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if not os.path.exists(dir):
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print('Directory not exists.')
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return
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# list all file and get the number of files with prefix
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filenum = 0
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filelist = []
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for file in os.listdir(dir):
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if file.startswith(prefix):
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filenum += 1
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filelist.append(file)
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filelist.sort()
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# rename file
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print(filelist)
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for i in range(filenum):
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srcfile = os.path.join(dir, filelist[i])
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dstfile = os.path.join(dir, prefix + '%03d'%(i+1) + '.txt')
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if srcfile != dstfile:
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print(srcfile, dstfile)
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shutil.move(srcfile, dstfile)
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sequence('demo', 'spam')

‎09-organize-file/traverseDir.py

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import os
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for folderName, subfolders, filenames in os.walk('E:\\git\\AutomatePython'):
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print('The current folder is ' + folderName)
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for subfolder in subfolders:
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print('SUBFOLDER OF ' + folderName + ': ' + subfolder)
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for filename in filenames:
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print('FILE INSIDE ' + folderName + ': ' + filename)
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print()

‎09-organize-file/zipfileDemo.py

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import os
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import zipfile
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os.chdir('E:\\')
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exampleZip = zipfile.ZipFile('mupdf-1.9a-windows.zip')
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print(exampleZip.namelist())
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spamInfo = exampleZip.getinfo('mupdf-1.9a-windows/COPYING.txt')
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print(spamInfo.file_size)
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print(spamInfo.compress_size)
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print('Compressed file is %sx smaller!', (round(spamInfo.file_size/spamInfo.compress_size, 2)))
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# exampleZip.extractall()
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exampleZip.close()

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