Randomly iterate a sequence with buffered shuffling
Project description
randiter
randiter
randomly iterates a sequence with buffered shuffling.
randiter
is suitable for shuffling very long sequences and sequences with an unknown length.
Usage
Shuffle a very long sequence:
from randiter import randiter
for index in randiter(range(1_000_000_000)):
print(index) # random number
Shuffle lines in a text file with an unknown length:
from randiter import randiter
with open("large.txt", "rt") as f:
for line in randiter(f):
print(line) # random line
Shuffle a sequence with a large buffer size (to perform perfect shuffling, specify a buffer size that is equal to or greater than the length of the given sequence):
from randiter import randiter
for index in randiter(range(1_000_000_000), buffer_size=1_000_000):
print(index) # random number
FAQ
- Q. Shuffled sequences are not completely shuffled.
- A. This is because
randiter
performs buffered shuffling. This problem can be mitigated by specifying a larger buffer size.
- A. This is because
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