os module
Get the current working directory os.getcwd ()
Return all files and directories in the specified directory name os.listdir ()
Function is used to delete a file os.remove ()
Create a single directory os.mkdir ( "test")
Create an empty file os.mknod ( "test.txt")
Rename os.rename (old, new)
os.path module
Return to a path of the directory name and file name os.path.split ()
E.g. os.path.split ( '/ home / swaroop / byte / code / poem.txt') Results: ( '/ home / swaroop / byte / code', 'poem.txt')
Get File Size os.path.getsize (filename)
Whether given path really exist os.path.exists ()
open
fp = open ( "test.txt", w) directly open a file, if the file does not exist, create
Common mode on open:
w to write the way open
opened in a mode additional
r + / w + / a + are opened so as to read and write
rb opened in binary read mode
wb opened in binary write mode
rb + / wb + are opened in binary mode write
read
fp.read ([size]) size of the read length, a byte as a unit
Part fp.readline ([size]) to read a line, if the defined size is only possible to return line
fp.readlines ([size]) to each line of the file as a member of a list and returns the list, its interior is through the cycle call readline () to achieve
fp.close () closes the file at the end of file operations to add this command python comes though, but still want to cultivate the habit