jsonstreams_example.py

# pip install jsonstreams
import jsonstreams

# example from docs
mylist = list(range(10))
mydict = {a: b for a in range(10) for b in 'abcdefghij'}

# NB - arguement order changed from doc example.
# see https://github.com/dcbaker/jsonstreams/issues/13
with jsonstreams.Stream(jsonstreams.Type.object, 'foo') as s:
    s.write('list', mylist)
    s.write('dict', mydict)

# Showing for array, and using indent
# sort_keys not supported
fname = '/tmp/jstream.json'
s = jsonstreams.Stream(jsonstreams.Type.array, fname, indent=4)
d1 = {k: k**3 for k in range(5)}
d2 = {k: str(k**3) for k in range(15, 10, -1)}

s.write(d1)
s.write(d2)

# must explicitly close -- that's what outputs the closing delimiter
s.close()