diff options
Diffstat (limited to 'Modules')
| -rw-r--r-- | Modules/itertoolsmodule.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/Modules/itertoolsmodule.c b/Modules/itertoolsmodule.c index afff7e4..0291b24 100644 --- a/Modules/itertoolsmodule.c +++ b/Modules/itertoolsmodule.c @@ -2985,18 +2985,18 @@ def permutations(iterable, r=None): cycles = range(n-r+1, n+1)[::-1] yield tuple(pool[i] for i in indices[:r]) while n: - for i in reversed(range(r)): - cycles[i] -= 1 - if cycles[i] == 0: - indices[i:] = indices[i+1:] + indices[i:i+1] - cycles[i] = n - i + for i in reversed(range(r)): + cycles[i] -= 1 + if cycles[i] == 0: + indices[i:] = indices[i+1:] + indices[i:i+1] + cycles[i] = n - i + else: + j = cycles[i] + indices[i], indices[-j] = indices[-j], indices[i] + yield tuple(pool[i] for i in indices[:r]) + break else: - j = cycles[i] - indices[i], indices[-j] = indices[-j], indices[i] - yield tuple(pool[i] for i in indices[:r]) - break - else: - return + return */ typedef struct { |