def int_to_size_str(size,b1024=True,zero='0 B',less_than_zero='%s', ):
'''Convert a file size to human-readable form.
Keyword arguments:
size -- file size in bytes
b1024 -- if True (default), use multiples of 1024
if False, use multiples of 1000
Returns: string
test git
'''
U,T,N,F=py.importUTNF()
if py.istr(size) or py.isbyte(size):
size=U.len(size)
size=py.int(size)
if size < 0:
if py.callable(less_than_zero):
return less_than_zero(size)
if py.istr(less_than_zero):
if '%' in less_than_zero:
return less_than_zero%size
if '{' in less_than_zero and '}' in less_than_zero:
return less_than_zero.format(size)
return less_than_zero
if size==0:return zero
# raise ValueError('number must be non-negative')
multiple = 1024.0 if b1024 else 1000.0 #another if statement style
if size<=multiple:return py.str(size)+' B'
for suffix in SUFFIXES[multiple]:
size /= multiple
if size < multiple:
return '{0:.3f} {1}'.format(size, suffix)
raise ValueError('number too large')
def set_title(title, h=0):
'''在python内设置的，退出后 会还原
py3 : SetWindowTextW
'''
if not py.istr(title): title = py.str(title)
if not h: h = getCmdHandle()
if py.is3():
return user32.SetWindowTextW(h, title)
else:
return user32.SetWindowTextA(h, title)
def isDir(ast):
'''#TODO:
'''
if not py.istr(ast):ast=py.str(ast)
if not ast:return False
ast=ast.replace('\\','/')
if exist(ast):
return _p.isdir(ast)
else:
if ast.endswith('/'):return True
else: return False
def __str__(self):
U=py.importU()
s='<{}'.format(numToSize(self) )
repr=U.get_duplicated_kargs(self.ka,'repr','str','s','st','__repr__','__str__',no_pop=True)
if repr:
if py.callable(repr):
return repr(self, **self.ka )
else:
return py.str(repr)
return T.justify(s,**self.ka)+'>'
def writeIterable(file,data,end='\n',overwrite=True,encoding=None): U=py.importU() if not encoding:encoding=U.encoding file=autoPath(file) if overwrite:new(file) if py.is2():f=py.open(file,'a') else: f=py.open(file,'a',encoding=encoding) for i in data: f.write(py.str(i)+end) f.close() return f.name
def makeDirs(ap,isFile=False,cd=0,no_auto_path=False):
''' 访问移动硬盘时，可能出现已经创建成功，但是 F.ls 看不到的情况。
用explorer访问后又正常
'''
U=py.importU()
if not no_auto_path:ap=autoPath(ap)
if not py.isbool(isFile) and not py.isint(isFile):
U.log('F.md(str,isFile={})'.format(repr(isFile)))
if py.is3():
from pathlib import Path
p=Path(ap).absolute()
if isFile:
return makeDirs(p.parent,isFile=False)
if p.is_file():#if not exists, is_dir() is_file() both return False
return py.No(ap+' exists , and it is a file')
r=py.No('unexpected err')
try:
p.mkdir()
except (FileNotFoundError,) as e:
if p.parent==p:# 'D:\\' 驱动器不存在
r=e
else:
r=makeDirs(p.parent,isFile=False)
if r:p.mkdir() # 建立父目录后，再次尝试创建本目录
else:return r
# else:return r
#但是如果父目录本来是个文件，再mkdir则FileNotFoundError: [WinError 3] 系统找不到指定的路径。
except FileExistsError:
pass
except Exception as e:
r=e
if p.exists():
if not no_auto_path:sp=autoPath(p)
else:sp=py.str(p.absolute()).replace('\\','/')
if p.is_dir() and not sp.endswith('/'):
sp+='/'
r=sp
else:
r=py.No(r,p)
if r and cd:U.cd(r)
return r
# if py.is2(): #########################################
U=py.importU()
sp=getSplitor(ap)
ap=ap.split(sp)
if isFile:ap=ap[:-1]
# if not isabs(ap):
# if not ap.startswith('.'):
# if ap.startswith(sp):ap=U.gst[:-1]+ap
# else:ap=U.gst+ap
# else:
base=''
for i in ap:
base+=(i+sp)
#TODO 2019-1-19 未处理存在的是文件 而不是 文件夹的情况
if exist(base):continue
else:
try:
_os.mkdir(base)
except Exception as e:
if U.iswin():
if e.winerror==5:continue#WindowsError(5, '') 拒绝访问
if e.winerror==183:continue#WindowsError 183 当文件已存在时，无法创建该文件。
if 'exists' in e.args[1]:#(17, 'File exists') cygwin;
continue
# U.repl(printCount=True)
setErr(e)
return False
return True