验证和格式化 JSON 文件

I have around 2000 JSON files which I'm trying to run through a Python program. A problem occurs when a JSON file is not in the correct format. (Error: ValueError: No JSON object could be decoded) In turn, I can't read it into my program.

我目前正在做如下工作:

for files in folder:
    with open(files) as f:
        data = json.load(f); # It causes an error at this part

I know there's offline methods to validating and formatting JSON files but is there a programmatic way to check and format these files? If not, is there a free/cheap alternative to fixing all of these files offline i.e. I just run the program on the folder containing all the JSON files and it formats them as required?

使用@Reess的 comments 解决:

invalid_json_files = []
read_json_files = []
def parse():
    for files in os.listdir(os.getcwd()):
        with open(files) as json_file:
            try:
                simplejson.load(json_file)
                read_json_files.append(files)
            except ValueError, e:
                print ("JSON object issue: %s") % e
                invalid_json_files.append(files)
    print invalid_json_files, len(read_json_files)

事实证明，我在工作目录中保存了一个不是JSON格式的文件，而工作目录正是我读取数据的地方.谢谢你的建议.