use 'x is None' instead of 'x == None'
The built-in None object is a singleton and it is therefore safe to
compare memory addresses with is. It is also faster, how much depends
on the object being compared. For a simple type like str I get:
| s = "foo" | s = None
----------+-----------+----------
s == None | 0.25 usec | 0.21 usec
s is None | 0.17 usec | 0.17 usec
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
marked working directory as branch notdefault
created new head
@ 4:r1:notdefault
|
| o 3:l2:
| |
| o 2:l1:
|/
o 1:c2:
|
o 0:c1:
% Rebase a branch while preserving the branch name
2 files updated, 0 files merged, 1 files removed, 0 files unresolved
saving bundle to
adding branch
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
rebase completed
@ 4:r1:notdefault
|
o 3:l2:
|
o 2:l1:
|
o 1:c2:
|
o 0:c1:
% dirstate branch should be "notdefault"
notdefault