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kiva-dig/unpack_kiva.py
2016-10-25 09:54:44 -04:00

59 lines
1.7 KiB
Python

import zipfile
import json
import os
try:
from json import JSONDecodeError
except ImportError:
JSONDecodeError = ValueError # Python 2 compatibility
kiva_root = 'kiva-data/'
kiva_folders = ['loans', 'lenders', 'loans_lenders']
def mkdirs():
os.mkdir(kiva_root)
for f in map(lambda x: kiva_root + x,
kiva_folders):
if not os.path.isdir(f):
os.mkdir(f)
def reformat_json(json_obj):
return json.dumps(json_obj, sort_keys=True, separators=(',', ':'))
def unpack_kiva(filename="kiva_ds_json.zip"):
if not zipfile.is_zipfile(filename):
raise TypeError("Unable to unpack zip - Corrupted file?")
z = zipfile.ZipFile(filename)
names = z.namelist()
for json_name in filter(lambda x: 'json' in x, names):
try:
json_file = z.open(json_name)
json_string = json_file.read().decode('utf8')
json_obj = json.loads(json_string)
# Get `loan`, `lender`, etc.
obj_type = json_name.split('/')[0]
json_content = json_obj[obj_type]
formatted = [reformat_json(j) for j in json_content]
with open(kiva_root + json_name, 'w+') as output:
output.write('\n'.join(formatted))
except JSONDecodeError:
print("Error decoding file {}".format(json_name))
def merge_kiva():
for folder in kiva_folders:
files = os.listdir(kiva_root + folder)
out_handle = open(kiva_root + folder + '.json', 'w+')
for f in files:
in_handle = open(os.path.join(kiva_root, folder, f), 'r')
for line in in_handle:
out_handle.write(line)
if __name__ == '__main__':
mkdirs()
unpack_kiva()
merge_kiva()