Some commonly used small scripts in python

Find the list of files with the specified suffix

Find the file with the specified suffix and return the found file path list, which will recurse the folder.

import os


# Find the file with the specified suffixdef find_type(path:str,fix:str):
    dlist=(path)
    file_list=[]
    for i in dlist:
        ps=(path, i)
        if (ps):
            file_list+=find_type(ps,fix)
        else:
            if(ps[-len(fix):]==fix):
                file_list.append(ps)
    return file_list

Convert file encoding

The example is to convert a gb2312-encoded file into an utf8-encoded file.

def conv(file:str):
    s=""
    try:
        with open(file,encoding="gb2312") as f:
            s=()
        (file)
        with open(file,mode="w+",encoding="utf-8") as f:
            (s)
    except Exception as e:
        print("conv failed",file)

Delete file comments

Enter the file name, line comment label, and block comment label, generate the file after deletion comment and save it and overwrite the original file.
For example, C language uses // and /* */ to comment, and the call method is as follows:

del_comm("","//",["/*","*/"])

# Delete all commentsdef del_comm(file:str,line_comm:str,blok_comm:list[str]):
    text=""
    try:
        with open(file,encoding="utf-8") as f:
            lines=()
    except Exception as e:
        print("decode failed",file)
        return
    for i in range(len(lines)):
        index=lines[i].find(line_comm)
        if(index&gt;=0):
            lstr=lines[i][:index]
        else:
            lstr=lines[i].rstrip()
        if(len(())&gt;0):
            text+=lstr+'\n'
        elif(text[-2:]=='\\\n'):
            text+='\n'
    index_start=0
    text_out=""
    while True:
        index=(blok_comm[0],index_start)
        index_end=(blok_comm[1],index)
        if(index&gt;=0 and index_end&gt;index):
            text_out+= text[index_start:index]
            index_start=index_end+len(blok_comm[1])
        else:
            text_out+=text[index_start:]
            break
    with open(file,mode="w+",encoding="utf-8") as f:
        (text_out)

Remove too many whitespace characters

def simplified(text:str):
  '''
   Return a new string, removing too many whitespace characters
   '''
  space=['\t', '\n', '\v', '\f', '\r',  ' ']

  r=""
  start=0
  is_empty=False
  while text[start] in space:
    start+=1
  for i in range(start,len(text)):
    if text[i] in space:
      is_empty=True
    else:
      if(is_empty==True):
        r+=" "
        is_empty=False
      r+=text[i]
  return r

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