Python 2.7:加载一个 JSON 文件搜索一个值,替换它,并另存为新的 JSON

Python 2.7: Load a JSON file search for a value, replace it, and save as new JSON

如标题中所述,我正在尝试制作一个简单的 py 脚本,可以从终端 运行 执行以下操作:

就是说,问题是当我尝试下面发布的递归搜索方法时,因为我对 python 还很陌生,我将不胜感激对这个问题的任何帮助,我想它是.. . 我正在使用的 json 文件或我正在使用的搜索方法。

简化问题,我搜索的值永远不会与 object 中的任何内容匹配,无论是键还是纯粹的字符串值。尝试了多种方法来执行递归搜索,但无法找到匹配项。

例如:考虑到示例 json,我想替换值 "selectable_parts" 或 "static_parts" 甚至更深的结构“1h_mod310_door_00”但是似乎我的搜索方法无法在 "object[object][children][0][children][5][name]" 中达到此值(希望这有帮助)。

示例 JSON:(https://drive.google.com/open?id=0B2-Bn2b0ujjVdW5YVGg3REg3OWs


"""KEYWORD REPLACING MODULE."""
import os
import json

# functions
def get_files():
    """lists files"""
    exclude = set(['.vscode', 'sample'])
    json_files = []
    for root, dirs, files in os.walk(os.getcwd(), topdown=True):
        dirs[:] = [d for d in dirs if d not in exclude]
        for name in files:
            if name.endswith('.json'):
                json_files.append(os.path.join(root, name))
    return json_files

def load_files(json_files):
    """works files"""
    for js_file in json_files:
        with open(js_file) as json_file:
            loaded_json = json.load(json_file)
            replace_key_value(loaded_json, os.path.basename(js_file))

def write_file(data_file, new_file_name):
    """writes the file"""
    if not os.path.exists('converted'):
        os.makedirs('converted')
    with open('converted/' + new_file_name, 'w') as json_file:
        json.dump(data_file, json_file)

def replace_key_value(js_file, js_file_name):
    """replace and initiate save"""
    recursive_replace(js_file, SKEY, '')
    # write_file(js_file, js_file_name)

def recursive_replace(data, match, repl):
    """search for needed value and replace its value"""
    for key, value in data.items():
        if value == match:
            print data[key]
            print "AHHHHHHHH"
        elif isinstance(value, dict):
            recursive_replace(value, match, repl)

# main
print "\n" + '- on ' + os.getcwd()
NEW_DIR = raw_input('Work dir (leave empty if current): ')
if not NEW_DIR:
    print NEW_DIR
    NEW_DIR = os.getcwd()
else:
    print NEW_DIR
    os.chdir(NEW_DIR)

# get_files()
JS_FILES = get_files()
print '- files on ' + os.getcwd()
# print "\n".join(JS_FILES)
SKEY = raw_input('Value to search: ')
RKEY = raw_input('Replacement value: ')
load_files(JS_FILES)

问题是我导航 json obj 的方式,因为该方法没有考虑它是字典还是列表(我相信...)。

所以为了回答我自己的问题,这里是我用来检查值的递归搜索:

def get_recursively(search_dict, field):
    """
    Takes a dict with nested lists and dicts,
    and searches all dicts for a key of the field
    provided.
    """
    fields_found = []

    for key, value in search_dict.iteritems():

        if key == field:
            print value
            fields_found.append(value)

        elif isinstance(value, dict):
            results = get_recursively(value, field)
            for result in results:
                if SEARCH_KEY in result:
                    fields_found.append(result)

        elif isinstance(value, list):
            for item in value:
                if isinstance(item, dict):
                    more_results = get_recursively(item, field)
                    for another_result in more_results:
                        if SEARCH_KEY in another_result:
                            fields_found.append(another_result)

    return fields_found
    # write_file(js_file, js_file_name)

希望这对某人有所帮助。