4.1 KiB
| title |
|---|
| os |
os provides a platform-independent interface to operating system functionality.
Index
- def chdir(dir)
- def getenv(key) dir
- def getwd() dir
- def mkdir(name, perms=0o777)
- def mkdir_all(name, perms=0o777)
- def read_file(filename) string
- def remove(name)
- def remove_all(path)
- def rename(oldpath, newpath)
- def setenv(key, value) dir
- def write_file(filename, data, perms=0o644)
Functions
def os.chdir
os.chdir(dir)
changes the current working directory to the named directory.
Arguments
| name | type | description |
|---|---|---|
dir |
string |
target dir |
def os.getenv
os.getenv(key) dir
retrieves the value of the environment variable named by the key.
Arguments
| name | type | description |
|---|---|---|
key |
string |
name of the environment variable |
def os.getwd
os.getwd() dir
returns a rooted path name corresponding to the current directory.
def os.mkdir
os.mkdir(name, perms=0o777)
creates a new directory with the specified name and permission bits (before umask).
Arguments
| name | type | description |
|---|---|---|
name |
string |
name of the folder to be created |
perms |
int |
optional, permission of the folder |
def os.mkdir_all
os.mkdir_all(name, perms=0o777)
creates a new directory with the specified name and permission bits (before umask).
Arguments
| name | type | description |
|---|---|---|
name |
string |
name of the folder to be created |
perms |
int |
optional, permission of the folder |
def os.read_file
os.read_file(filename) string
reads the file named by filename and returns the contents.
Arguments
| name | type | description |
|---|---|---|
filename |
string |
name of the file to be written |
data |
string |
content to be witten to the file |
perms |
int |
optional, permission of the file |
def os.remove
os.remove(name)
removes the named file or (empty) directory.
Arguments
| name | type | description |
|---|---|---|
name |
string |
name of the file or directory to be deleted |
def os.remove_all
os.remove_all(path)
removes path and any children it contains. It removes everything it can but returns the first error it encounters.
Arguments
| name | type | description |
|---|---|---|
name |
string |
path to be deleted |
def os.rename
os.rename(oldpath, newpath)
renames (moves) oldpath to newpath. If newpath already exists and is not a directory, Rename replaces it. OS-specific restrictions may apply when oldpath and newpath are in different directories.
Arguments
| name | type | description |
|---|---|---|
oldpath |
string |
old path |
newpath |
string |
new path |
def os.setenv
os.setenv(key, value) dir
sets the value of the environment variable named by the key.
Arguments
| name | type | description |
|---|---|---|
key |
string |
name of the environment variable |
value |
string |
value of the environment variable |
def os.write_file
os.write_file(filename, data, perms=0o644)
retrieves the value of the environment variable named by the key.
Arguments
| name | type | description |
|---|---|---|
filename |
string |
name of the file to be written |
data |
string |
content to be witten to the file |
perms |
int |
optional, permission of the file |