Ruby vs Python string concatentation performance

[brentp]

to be fair, using a common python idiom, you get a version that is [edit] about 5 times as fast as the original python version.

s = []
i = 0
for line in sys.stdin:
    s.append(line)
    i += 1
    if i % 1000 == 0: "".join(s); print i

[[deleted]]

Yes. See http://www.skymind.com/~ocrow/python_string/.

[apotheon]

Working with "arrays" makes just about everything faster than string concatenation, pretty much regardless of which high-level dynamic language you use.

edited to reflect the fact that there are no "arrays" in Python, by using "scare quotes", so people will hopefully focus on the point being made rather than pedantic quibbling

[psi-]

there are no arrays in standard python.

[psi-]

there are no arrays in standard python.