ensureBuffer for fast byte array append

Demonstrates how to call ensureBuffer to ensure efficiency (high-performance) when appending large amounts of data to a CkByteData.

Download Chilkat Python Library

import chilkat


data = chilkat.CkByteData()

#  Pre-allocate 20MB (if necessary) for the appends to follow.
#  This will prevent re-occuring (internal) buffer reallocation,
#  and dramatically improves performance.
data.ensureBuffer(20000000)

for i in range(0,1000000):
    data.appendStr("1234567890ABCDEF")

sz = data.getSize()
print str(sz)