Python：将.txt文件读入数据帧并写回文件后，无法获取原始格式

我有一个.txt文件，我需要在上执行异常值删除。该文件如下所示：

{"mille":"802821", "type":"tc", "test":"mod6", "hrow":"C", "pcnt":"1", "pid":"0", "pidx":"0", "act":"DOWN-1ST", "x":"557.00", "y":"1043.00", "size":"0.3333", "press":"0.6000", "vx":"0.0007", "vy":"0.0013"}
{"mille":"802821", "type":"tc", "test":"mod6", "hrow":"C", "pcnt":"2", "pid":"0", "pidx":"0", "act":"DOWN-P2", "x":"557.00", "y":"1043.00", "size":"0.3333", "press":"0.6000", "vx":"NaN", "vy":"NaN"}
{"mille":"802821", "type":"tc", "test":"mod6", "hrow":"C", "pcnt":"2", "pid":"1", "pidx":"1", "act":"DOWN-P2", "x":"641.00", "y":"754.00", "size":"0.2000", "press":"0.5500", "vx":"Infinity", "vy":"-Infinity"}
{"mille":"802837", "type":"th", "test":"mod6", "hrow":"0", "pcnt":"2", "pid":"0", "pidx":"0", "act":"MOVE", "x":"556.00", "y":"1043.00", "size":"0.3333", "press":"0.6000", "vx":"-5.3125", "vy":"18.0625"}
{"mille":"802837", "type":"th", "test":"mod6", "hrow":"0", "pcnt":"2", "pid":"1", "pidx":"1", "act":"MOVE", "x":"641.00", "y":"754.00", "size":"0.2000", "press":"0.5500", "vx":"5.3125", "vy":"-18.0625"}
{"mille":"802846", "type":"th", "test":"mod6", "hrow":"1", "pcnt":"2", "pid":"0", "pidx":"0", "act":"MOVE", "x":"555.00", "y":"1044.00", "size":"0.3333", "press":"0.6000", "vx":"-3.4400", "vy":"11.6000"}
{"mille":"802846", "type":"th", "test":"mod6", "hrow":"1", "pcnt":"2", "pid":"1", "pidx":"1", "act":"MOVE", "x":"641.00", "y":"754.00", "size":"0.2000", "press":"0.5500", "vx":"3.4400", "vy":"-11.6000"}
{"mille":"802854", "type":"th", "test":"mod6", "hrow":"2", "pcnt":"2", "pid":"0", "pidx":"0", "act":"MOVE", "x":"554.00", "y":"1045.00", "size":"0.3333", "press":"0.6000", "vx":"-2.6364", "vy":"8.8182"}
{"mille":"802854", "type":"th", "test":"mod6", "hrow":"2", "pcnt":"2", "pid":"1", "pidx":"1", "act":"MOVE", "x":"641.00", "y":"754.00", "size":"0.2000", "press":"0.5500", "vx":"2.6364", "vy":"-8.8182"}
{"mille":"802863", "type":"th", "test":"mod6", "hrow":"3", "pcnt":"2", "pid":"0", "pidx":"0", "act":"MOVE", "x":"553.00", "y":"1047.00", "size":"0.3333", "press":"0.6125", "vx":"-2.0952", "vy":"6.9762"}

..（每个文件中有更多类似的行，我有几个文件）

（请注意，原始文本文件中的两个{}之间没有空格。）

我使用read_txt（）函数将其读入数据帧，并完成了异常值删除。 现在我需要把它读回文本文件，格式和以前完全一样

这是我的密码：

path = 'c:/Users/USER/.spyder-py3/machine-learning/data2/test/*.txt'
filelist = glob.glob(path, recursive = True)

for i in range(0,3):
    df = pd.read_json(filelist[i], lines=True)

    outlier_x = df['x'].mean() + df['x'].std() * 3
    outlier_x2 = df['x'].mean() - df['x'].std() * 3
    outlier_y = df['y'].mean() + df['y'].std() * 3
    outlier_y2 = df['y'].mean() - df['y'].std() * 3
    outlier_vx = df['vx'].mean() + df['vx'].std() * 3
    outlier_vx2 = df['vx'].mean() - df['vx'].std() * 3
    outlier_vy = df['vy'].mean() + df['vy'].std() * 3
    outlier_vy2 = df['vy'].mean() - df['vy'].std() * 3
    outlier_pr = df['press'].mean() + df['press'].std() * 3
    outlier_pr2 = df['press'].mean() - df['press'].std() * 3
    outlier_sz = df['size'].mean() + df['size'].std() * 3
    outlier_sz2 = df['size'].mean() - df['size'].std() * 3

    df.drop(['act1','act2','size1','size2','x1','x2','y1','y2'],axis = 1, 
    inplace = True)
    df = df[['mille','type','test','xfocus','yfocus','span','sfact','hrow',
          'pcnt','pid','pidx','act','x','y','size','press','vx','vy']]


    # remove ouliers for column 'x'
    df = df.drop(df[((df['x'] > outlier_x) & (df['act'] == 'MOVE'))].index)
    df = df.drop(df[((df['x'] < outlier_x2) & (df['act'] == 'MOVE'))].index)
    # remove ouliers for column 'y'
    df = df.drop(df[((df['y'] > outlier_y) & (df['act'] == 'MOVE'))].index)
    df = df.drop(df[((df['y'] < outlier_y2) & (df['act'] == 'MOVE'))].index)
    # remove part of the infinite values from column 'vx'
    df = df.drop(df[(((df['vx'] == np.inf) & (df['act'] == 'MOVE')))].index)
    df = df.drop(df[(((df['vx'] == -np.inf) & (df['act'] == 'MOVE')))].index)
    # replace infinit with NAN
    df['vx'] = df['vx'].replace([np.inf,-np.inf],df['vx'].mean())
    # remove ouliers from column 'vx'  
    df = df.drop(df[((df['vx'] > outlier_vx) & (df['act'] == 'MOVE'))].index)
    df = df.drop(df[((df['vx'] < outlier_vx2) & (df['act'] == 'MOVE'))].index)
    # replace infinit with NAN
    df['vy'] = df['vy'].replace([np.inf,-np.inf],df['vy'].mean())
    # fill na with '0' in columns 'vx'
    df['vx'] = df['vx'].fillna(0.0)
     # fill na with '0' in columns 'vy'
    df['vy'] = df['vy'].fillna(0.0)
    # remove outliers from column 'vy'
    df = df.drop(df[((df['vy'] > outlier_vy) & (df['act'] == 'MOVE'))].index)
    df = df.drop(df[((df['vy'] < outlier_vy2) & (df['act'] == 'MOVE'))].index)
    # remove outliers from column 'press'
    df = df.drop(df[((df['press'] > outlier_pr) & (df['act'] == 'MOVE'))].index)
    df = df.drop(df[((df['press'] < outlier_pr2) & (df['act'] == 
    'MOVE'))].index)
    # remove outliers from column 'size'
    df = df.drop(df[((df['size'] > outlier_sz) & (df['act'] == 'MOVE'))].index)
    df = df.drop(df[((df['size'] < outlier_sz2) & (df['act'] == 'MOVE'))].index)

    df.loc[df.xfocus.notnull(), ['vx','vy']] = np.nan,np.nan

    col_select = ['mille','type','test','xfocus','yfocus','span','sfact','hrow',
                 'pcnt','pid','pidx','act','x','y','size','press','vx','vy']

     # modify dataframe to propriate json format
    jsonresult = df.to_json(orient='records')
     # read the json string to get a list of dictionaries
    rows = json.loads(jsonresult)



   # remove some null values
    new_rows = [OrderedDict([(key, row[key]) for key in col_select if (key in 
    row) and pd.notnull(row[key])])for row in rows]

    jsonfile = json.dump(new_rows)


    #save them into destination
    outfile =  "c:/Users/USER/.spyder-py3/machine- 
    learning/data2/testresult/user_" + str(i) + "_mod6.txt"
    thefile = open(outfile, 'w')

    json_output = jsonfile.strip("[]").split('},')

    for i in range(len(json_output)):
       json_output[i] = json_output[i] + '}'

    for item in json_output:    
       thefile.write("%s\n" % item)

path='c:/Users/USER/.spyder-py3/machine learning/data2/test/*.txt'
filelist=glob.glob（路径，递归=True）
对于范围（0,3）内的i：
df=pd.read_json（文件列表[i]，行=True）
异常值_x=df['x'].mean（）+df['x'].std（）*3
异常值_x2=df['x'].mean（）-df['x'].std（）*3
异常值_y=df['y'].mean（）+df['y'].std（）*3
异常值_y2=df['y'].mean（）-df['y'].std（）*3
异常值_vx=df['vx'].mean（）+df['vx'].std（）*3
异常值_vx2=df['vx'].mean（）-df['vx'].std（）*3
异常值=df['vy'].mean（）+df['vy'].std（）*3
异常值_vy2=df['vy'].mean（）-df['vy'].std（）*3
异常值=df['press'].mean（）+df['press'].std（）*3
异常值_pr2=df['press'].mean（）-df['press'].std（）*3
离群值_sz=df['size'].mean（）+df['size'].std（）*3
离群值_sz2=df['size'].mean（）-df['size'].std（）*3
落差（['act1'、'act2'、'size1'、'size2'、'x1'、'x2'、'y1'、'y2']，轴=1，
原地=真）
df=df['mille'，'type'，'test'，'xfocus'，'yfocus'，'span'，'sfact'，'hrow'，
‘pcnt’、‘pid’、‘pidx’、‘act’、‘x’、‘y’、‘尺寸’、‘压力’、‘vx’、‘vy’】
#删除列“x”的欧利埃
df=df.drop（df[（（df['x']>异常值_x）和（df['act']='MOVE'）））]索引）
df=df.drop（df[（（df['x']异常值_y）和（df['act']='MOVE'）））]索引）
df=df.drop（df[（（df['y']异常值_vx）和（df['act']='MOVE'）））]索引）
df=df.drop（df[（（df['vx']异常值）&（df['act']='MOVE'）））]索引）
df=df.drop（df[（（df['vy']异常值_pr）和（df['act']='MOVE'）））]索引）
df=df.drop（df[（（df['press']outlier_sz）和（df['act']=='MOVE'）））]索引）
df=df.drop（df[（（df['size']

我试图得到一个txt文件，就像原来的那个一样，输出文件看起来很相似。但是当我试图读取清理过的txt文件并对其执行其他操作时，我得到了如下错误：JSONDecodeError:Extra data:line 1 column 201（char 200）。整个错误消息如下所示：

---------------------------------------------------------------------------
JSONDecodeError                           Traceback (most recent call last)
<ipython-input-7-a2c25911084b> in <module>()
   2321             print('-----------------------test where am I--------------------------------')
   2322             for line in file_object:
-> 2323                 jrecord = json.loads(line)
   2324                 try:
   2325                     typ = jrecord['type']

~\Anaconda3\lib\json\__init__.py in loads(s, encoding, cls, object_hook, parse_float, parse_int, parse_constant, object_pairs_hook, **kw)
    352             parse_int is None and parse_float is None and
    353             parse_constant is None and object_pairs_hook is None and not kw):
--> 354         return _default_decoder.decode(s)
    355     if cls is None:
    356         cls = JSONDecoder

~\Anaconda3\lib\json\decoder.py in decode(self, s, _w)
    340         end = _w(s, end).end()
    341         if end != len(s):
--> 342             raise JSONDecodeError("Extra data", s, end)
    343         return obj
    344 

JSONDecodeError: Extra data: line 1 column 201 (char 200)

---------------------------------------------------------------------------
JSONDecodeError回溯（最近一次调用）
在（）
2321打印（“------------------------------------测试我在哪里----------------------”）
2322对于文件\u对象中的行：
->2323 jrecord=json.loads（第行）
2324请尝试：
2325 typ=jrecord['type']
加载中的~\Anaconda3\lib\json\\uuuuuu init\uuuuuuuuuuuuuuuuuuuuuuuuuuuuupy（s、编码、cls、对象钩子、解析浮点数、解析整型、解析常量、对象对钩子、**kw）
352 parse_int为无，parse_float为无，且
353 parse_常量为None且对象_pairs_hook为None且非kw）：
-->354返回\u默认\u解码器。解码
355如果cls为无：
356 cls=JSONDecoder
解码中的~\Anaconda3\lib\json\decoder.py（self，s，\u w）
340 end=_w（s，end）.end（）
341如果结束！=(s)
-->342 raise JSONDecodeError（“额外数据”，s，结束）
343返回obj
344
JSONDecodeError:额外数据：第1行第201列（字符200）

在处理未清理的.txt文件时，没有出现此类错误。因此，很明显，当我写回数据时，出现了一些错误。现在我抓住她了