Mercurial > public > mercurial-scm > hg
comparison mercurial/util.py @ 5743:df09fad0059e
util: simplify unique
| author | Matt Mackall <mpm@selenic.com> |
|---|---|
| date | Thu, 27 Dec 2007 23:55:40 -0600 |
| parents | 2bd4d56ff37c |
| children | 027264e720aa |
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| 5742:2bd4d56ff37c | 5743:df09fad0059e |
|---|---|
| 222 return True | 222 return True |
| 223 return False | 223 return False |
| 224 | 224 |
| 225 def unique(g): | 225 def unique(g): |
| 226 """return the uniq elements of iterable g""" | 226 """return the uniq elements of iterable g""" |
| 227 seen = {} | 227 return dict.fromkeys(g).keys() |
| 228 l = [] | |
| 229 for f in g: | |
| 230 if f not in seen: | |
| 231 seen[f] = 1 | |
| 232 l.append(f) | |
| 233 return l | |
| 234 | 228 |
| 235 class Abort(Exception): | 229 class Abort(Exception): |
| 236 """Raised if a command needs to print an error and exit.""" | 230 """Raised if a command needs to print an error and exit.""" |
| 237 | 231 |
| 238 class UnexpectedOutput(Abort): | 232 class UnexpectedOutput(Abort): |