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add option to define delimiter and quoting policy. resolves #10 #34

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add option to define delimiter and quoting policy. resolves #10 #34

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26 changes: 23 additions & 3 deletions json_to_csv.py
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Original file line number Diff line number Diff line change
Expand Up @@ -58,14 +58,34 @@ def reduce_item(key, value):
reduced_item[to_string(key)] = to_string(value)


def get_quote_policy(policy):
pol = str(policy).lower()
if pol in ('0', 'minimal'):
return csv.QUOTE_MINIMAL
if pol in ('2','none'):
return csv.QUOTE_NONE
if pol in ('3', 'nonnumeric'):
return csv.QUOTE_NONNUMERIC

#default behaviour
return csv.QUOTE_ALL


if __name__ == "__main__":
if len(sys.argv) != 4:
print ("\nUsage: python json_to_csv.py <node> <json_in_file_path> <csv_out_file_path>\n")
if len(sys.argv) < 4:
print ("\nUsage: python json_to_csv.py <node> <json_in_file_path> <csv_out_file_path> [delimiter] [quote_strategy]\n")
else:
#Reading arguments
node = sys.argv[1]
json_file_path = sys.argv[2]
csv_file_path = sys.argv[3]
d_delimiter = ',' #default delimiter
q_quote_policy = csv.QUOTE_ALL

if len(sys.argv)>4:
d_delimiter = sys.argv[4]
if len(sys.argv)>5:
q_quote_policy = get_quote_policy(sys.argv[5])

fp = open(json_file_path, 'r')
json_value = fp.read()
Expand All @@ -91,7 +111,7 @@ def reduce_item(key, value):
header.sort()

with open(csv_file_path, 'w+') as f:
writer = csv.DictWriter(f, header, quoting=csv.QUOTE_ALL)
writer = csv.DictWriter(f, header, delimiter=d_delimiter, quoting=q_quote_policy)
writer.writeheader()
for row in processed_data:
writer.writerow(row)
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