[PY3]——IO——pathlib

Posted 2020-10-04 Jelly_lyj

 

# pathlib.Path()

from pathlib import Path
p=Path("/test2")

 

# Path.cwd()

print(p.cwd())
/py3

 

# Path.home()

print(p.home())
/root

 

# Path.iterdir()

print(list(p.iterdir()))
[PosixPath(‘/test2/p.py‘), PosixPath(‘/test2/aa.txt‘), PosixPath(‘/test2/bb‘)]

 

# Path.stat()

print(p.stat())
 s.stat_result(st_mode=16804, st_ino=296353, st_dev=2053, st_nlink=3, st_uid=500, st_gid=500, st_size=4096, st_atime=1503619754, st_mtime=1503523284, st_ctime=1503523284)

 

# Path.chmod()

print(oct(p.stat().st_mode)[-3:])
644

p.chmod(0o755)

print(oct(p.stat().st_mode)[-3:])
755

 

# Path.owner()

print(p.owner())
user00

 

# Path.group()

print(p.group())
user00

 

# Path.glob(pattern)

print(list(p.glob("*.py")))
[PosixPath(‘/test2/p.py‘)]

print(list(p.glob(‘**/*.py‘)))
[PosixPath(‘/test2/p.py‘), PosixPath(‘/test2/bb/p2.py‘)]

 

# Path.rglob(pattern)

print(list(p.rglob(‘*.py‘)))
[PosixPath(‘/test2/p.py‘), PosixPath(‘/test2/bb/p2.py‘)]

 

# Path.expanduser()

p=Path("~/Desktop")
print(p.expanduser())
/root/Desktop

 

# Path.exists()

print(p.exists())
True

p=Path("/test2_not_exist")
print(p.exists())
False

 

# Path.is_dir() |  is_file()

print(p.is_dir())
True
print(p.is_file())
False

 

# Path.is_socket() | is_fifo() | is_block_device() | is_char_device() | is_symlink()

# Path.mkdir(mode=0o777, parents=False, exist_ok=False)

p=Path("/test2/test2_tree")
p.mkdir(mode=0o644)
print(p.exists())
True

p=Path("/test2_no_exist/aa")
p.mkdir()
FileNotFoundError: [Errno 2] No such file or directory: ‘/test2_no_exist/aa‘
p.mkdir(parents=True)
print(p.exists())
True

p.mkdir(exist_ok=True)
不会报错

 

# Path.touch(mode=0o666, exist_ok=True)

p=Path("/test2/no_exits_text")
p.touch(mode=0o755)
print(p.exists())
True
print(oct(p.stat().st_mode)[-3:])
755

 

# Path.open(mode=’r’, buffering=-1, encoding=None, errors=None, newline=None)

p=Path("/test2/aa.txt")
with p.open() as f:
  print(f.read())

 

# Path.read_bytes()

print(p.read_bytes())
b‘test content\n2test2 content\n‘

 

# Path.read_text()

print(p.read_text())
test content
2test2 content

 

# Path.write_bytes(data)

 

# Path.write_text(data,encoding=None,errors=None)

 

# Path.rename(target)p=Path("/test2/test.txt")

p.open("w").write("test content")
target=Path("/test2/test.rename")
p.rename(target)

print(target.open().read())
test content
print(p.exists())
False

# Path.replace(target)

无条件替换

 

# Path.resolve()

返回绝对路径

 

# Path.samefile(other_path)

 

# Path.rmdir()

p=Path("/test2/bb")
p.rmdir()
OSError: [Errno 39] Directory not empty: ‘/test2/bb‘
#只能删除空目录

 

# Path.symlink_to()

 

# Path.unlink()

# PurePath.suffix

p=Path("/test2/bb/p2.py")
print(p.suffix)
.py
print(p.suffixes)
[‘.py‘]