


How to batch modify file extensions in python? How to batch modify file extensions
本篇文章给大家带来的内容是介绍python如何批量修改文件后缀名?批量修改文件后缀名的方法。有一定的参考价值,有需要的朋友可以参考一下,希望对你们有所帮助。
1、引言
需要把.dat 格式 转化成 .txt格式
2、实现
##python批量更换后缀名 import os # 列出当前目录下所有的文件 files = os.listdir('.') #print('files',files) for filename in files: portion = os.path.splitext(filename) # 如果后缀是.dat if portion[1] == ".dat": # 重新组合文件名和后缀名 newname = portion[0] + ".txt" os.rename(filename,newname)
这里有一个缺点,就是,需要把程序放在与修改的文件同一目录下,因为filenames只是获取了程序目录的文件名。
自己本来想修改一下程序,实现,程序不在文件目录下也能进行修改操作,可是,还没有成功,思路如下:
##python批量更换后缀名 import os import sys sys.path.append(r"G:\traindataDAT\ ") #print(sys.path) # 列出当前目录下所有的文件 files = os.listdir(r"G:\traindataDAT") #files = os.listdir('.') #print('files',files) for filename in files: portion = os.path.splitext(filename) # 如果后缀是.txt if portion[1] == ".dat": # 重新组合文件名和后缀名 newname = portion[0] + ".txt" os.rename(filename,newname)
总感觉程序是有问题,就是不知道该如何修改,难道是在filename变成完整的路径吗?
根据这个思路,重新写了一个可以实现程序和文件不在同一目录的操作:
##python批量更换后缀名 import os import sys path0=r"G:\testdataTXT" path1=r"G:\testdataTXT"+'\\' sys.path.append(path1) # print(sys.path) # 列出当前目录下所有的文件 files = os.listdir(path0) # files = os.listdir('.') print('files',files) for filename in files: portion = os.path.splitext(filename) # 如果后缀是.txt if portion[1] == ".dat": # 重新组合文件名和后缀名 newname = portion[0] + ".txt" filenamedir=path1 +filename newnamedir=path1+newname # os.rename(filename,newname) os.rename(filenamedir,newnamedir)
参考:
Python批量修改文件后缀的方法(http://www.jb51.net/article/46260.htm);
sys.path.append()用法_myself(http://blog.csdn.net/rosefun96/article/details/78909412);
总结:以上就是本篇文的全部内容,希望能对大家的学习有所帮助。更多相关视频教程请访问:Python视频教程,Python3视频教程,bootstrap视频教程!
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