Python implements the method of counting the number of lines of code, and python calculates the number of lines of code

Python implements the method of counting the number of lines of code, and python calculates the number of lines of code

This example describes how to calculate the number of lines of code in python. Share it with you for your reference. The specific implementation method is as follows:

'''Author: liupengfeiFunction: count lines of code in a folder iterativelyShell-format: cmd [dir]Attention: default file encode is utf8 and default file type is java-source-file. But users can customize this script by just modifing global variables.'''import sysimport osimport codecsfrom _pyio import opentotalCount = 0;fileType = '.java'descLineBegin = '//'descBlockBegin = r'/**'descBlockEnd = r'*/'fileEncode = 'utf-8'def main():  DIR = os.getcwd()  if len(sys.argv) >= 2:    DIR = sys.argv[1]  if os.path.exists(DIR) and os.path.isdir(DIR):    print('target directory is %s' % DIR)    countDir(DIR)    print('total code line is %d' % totalCount)  else:    print('target should be a directory!')def isFileType(file):  return len(fileType) + file.find(fileType) == len(file)def countDir(DIR):  for file in os.listdir(DIR):    absPath = DIR + os.path.sep + file;    if os.path.exists(absPath):      if os.path.isdir(absPath):        countDir(absPath)      elif isFileType(absPath):        try:          countFile(absPath)        except UnicodeDecodeError:          print(            '''encode of %s is different, whichis not supported in this version!'''            )def countFile(file):  global totalCount  localCount = 0  isInBlockNow = False  f = codecs.open(file, 'r', fileEncode);  for line in f:    if (not isInBlockNow) and line.find(descLineBegin) == 0:      pass;    elif (not isInBlockNow) and line.find(descBlockBegin) >= 0:      if line.find(descBlockBegin) > 0:        localCount += 1      isInBlockNow = True;    elif isInBlockNow and line.find(descBlockEnd) >= 0:      if line.find(descBlockEnd) + len(descBlockEnd) < len(line):        localCount += 1      isInBlockNow = False;    elif (not isInBlockNow) and len(line.replace('\\s+', '')) > 0:      localCount += 1  f.close()  totalCount += localCount  print('%s : %d' % (file, localCount))if __name__ == '__main__':  main();

I hope this article will help you with Python programming.