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Add mergedicts_copy: non-modifying mergedicts

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This commit is contained in:
ZyX 2014-07-12 12:03:08 +04:00
parent 4d9157d7f1
commit 8ded14c3d8
1 changed files with 15 additions and 0 deletions
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15
powerline/lib/__init__.py
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@ -26,6 +26,21 @@ def mergedicts(d1, d2):
d1[k] = d2[k] d1[k] = d2[k]
def mergedicts_copy(d1, d2):
'''Recursively merge two dictionaries.
Dictionaries are not modified. Copying happens only if necessary. Assumes
that first dictionary support .copy() method.
'''
ret = d1.copy()
for k in d2:
if k in d1 and isinstance(d1[k], dict) and isinstance(d2[k], dict):
ret[k] = mergedicts_copy(d1[k], d2[k])
else:
ret[k] = d2[k]
return ret
def add_divider_highlight_group(highlight_group): def add_divider_highlight_group(highlight_group):
def dec(func): def dec(func):
@wraps_saveargs(func) @wraps_saveargs(func)