view mercurial/demandload.py @ 611:48c3eb2bf844

* clean up error handling when user requests to use a non file object
# HG changeset patch
# User [e-mail]
# Node ID 1ae21732349f5b6dba2941609a044d9c365a6fb2
# Parent  94744f6fe0e7c19b10fab7eb24249f3eeaa5489a
* clean up error handling when user requests to use a non file object
  - use os.path.exists() to verify the item exists
  - use os.path.isfile() to check whether the item is a file or not

diff -r 94744f6fe0e7 -r 1ae21732349f mercurial/hg.py

def demandload(scope, modules):
    class d:
        def __getattr__(self, name):
            mod = self.__dict__["mod"]
            scope = self.__dict__["scope"]
            scope[mod] = __import__(mod, scope, scope, [])
            return getattr(scope[mod], name)

    for m in modules.split():
        dl = d()
        dl.mod = m
        dl.scope = scope
        scope[m] = dl