comparison mercurial/util.py @ 37099:6ca5f825a0ca

util: make safehasattr() a pycompat function

So safehasattr() can be imported by utils.* modules. util.safehasattr() still
remains as an alias since it is pretty basic utility available for years.

On current Python 3, the builtin hasattr() should have no problem.

37098:a9ea2b1e5c4b

cookielib = pycompat.cookielib
empty = pycompat.empty
httplib = pycompat.httplib
pickle = pycompat.pickle
queue = pycompat.queue
socketserver = pycompat.socketserver
stderr = pycompat.stderr
stdin = pycompat.stdin
stdout = pycompat.stdout
bytesio = pycompat.bytesio

    pass

# Python compatibility

_notset = object()

def safehasattr(thing, attr):
    return getattr(thing, attr, _notset) is not _notset

def _rapply(f, xs):
    if xs is None:
        # assume None means non-value of optional data
        return xs

37099:6ca5f825a0ca

cookielib = pycompat.cookielib
empty = pycompat.empty
httplib = pycompat.httplib
pickle = pycompat.pickle
queue = pycompat.queue
safehasattr = pycompat.safehasattr
socketserver = pycompat.socketserver
stderr = pycompat.stderr
stdin = pycompat.stdin
stdout = pycompat.stdout
bytesio = pycompat.bytesio

    pass

# Python compatibility

_notset = object()

def _rapply(f, xs):
    if xs is None:
        # assume None means non-value of optional data
        return xs