Python3-json3csv

mac2022-06-30  146

import json import csv json_str = '[{"a":1,"b":"2","c":"3"},{"a":21,"c":"23","d":{"d1":"24"},"e":"25"}]' o = json.loads(json_str) def loop_data(o, k=''): global json_ob, c_line if isinstance(o, dict): for key, value in o.items(): if (k == ''): loop_data(value, key) else: loop_data(value, k + '.' + key) elif isinstance(o, list): for ov in o: loop_data(ov, k) else: if k not in json_ob: json_ob[k] = {} json_ob[k][c_line] = o def get_title_rows(json_ob): title = [] row_num = 0 rows = [] for key in json_ob: title.append(key) v = json_ob[key] if len(v) > row_num: row_num = len(v) continue for i in range(row_num): row = {} for k in json_ob: v = json_ob[k] if i in v.keys(): # 若有数据 ,则用填入表格 row[k] = v[i] else: # 若没有数据 ,则用空补位 row[k] = '' rows.append(row) return title, rows def write_csv(title, rows, csv_file_name): # 输出文件名称 newline: 去掉csv中默认会写入空行的问题 with open(csv_file_name, 'w', newline='') as csv_file: writer = csv.DictWriter(csv_file, fieldnames=title) writer.writeheader() writer.writerows(rows) def json_to_csv(object_list): global json_ob, c_line json_ob = {} c_line = 0 for ov in object_list: loop_data(ov) c_line += 1 title, rows = get_title_rows(json_ob) write_csv(title, rows, 'test.csv') json_to_csv(o)

转载于:https://www.cnblogs.com/bilaisheng/p/10210956.html

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