• Register
0 votes
1.4k views

Problem :

I am new to the Python, I am using Python-2.6 CGI scripts but facing following error in the server log while I was doing json.dumps(),

Traceback (most recent call last):
File "/etc/mongodb/server/cgi-bin/getstats.py", line 135, in <module>
print json.dumps(​​__get​data())
File "/usr/lib/python2.7/json/__init__.py", line 231, in dumps
return _default_encoder.encode(obj)
File "/usr/lib/python2.7/json/encoder.py", line 201, in encode
chunks = self.iterencode(o, _one_shot=True)
File "/usr/lib/python2.7/json/encoder.py", line 264, in iterencode
return _iterencode(o, 0)
UnicodeDecodeError: 'utf8' codec can't decode byte 0xa5 in position 0: invalid start byte

​Please Note :

​__get​data() function returns dictionary {} .

I guess the following lines are causing JSON encoder error

now = datetime.datetime.now()
now = datetime.datetime.strftime(now, '%Y-%m-%dT%H:%M:%S.%fZ')
print json.dumps({'current_time': now}) // I guess this is the culprit
6 5 3
7,540 points

1 Answer

0 votes

Solution :

I guess your string has a non ascii characters encoded in it.

I unable to decode with utf-8 it may happen if you need to use other encodings in your code. For e.g.:

>>> 'my weird character \x96'.decode('utf-8')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\Python27\lib\encodings\utf_8.py", line 16, in decode
return codecs.utf_8_decode(input, errors, True)
UnicodeDecodeError: 'utf8' codec can't decode byte 0x96 in position 19: invalid start byte

In your case, the encoding seems to be windows-1252 so you need to do as follows:

>>> 'my weird character \x96'.decode('windows-1252')
u'my weird character \u2013'

Now you have unicode so you can safely encode into utf-8.

9 7 4
38,600 points

Related questions

0 votes
2 answers 3.8K views
3.8K views
Problem : I have encountered the following error while compiling "process.py" python tools/process.py --input_dir data -- operation resize --outp ut_dir data2/resize data/0.jpg -> data2/resize/0.png Traceback (most recent call last): File "tools/process.py", line 235, in <module ... 0xff in position 0: invalid start byte What may be the cause of the error? I am using Python's version as 3.5.2.
asked Nov 22, 2019 peterlaw 6.9k points
0 votes
1 answer 324 views
324 views
Problem : Please find below my code for your reference. import os for root, dirs, files in os.walk('Path'):      for file in files:          if file.endswith('.c'):              with open(os.path.join(root, file)) as f:                     for line in f: ... already tried setting it with the open(os.path.join(root, file),'r',encoding='cp932') as f: but got the same above error
asked Jan 31 jwilliam 3.9k points
0 votes
1 answer 587 views
587 views
Problem : Getting bellow error while executing numpy arrays unicodedecodeerror: 'ascii' codec can't decode byte 0x90 in position 614: ordinal not in range(128)
asked Nov 7, 2019 peterlaw 6.9k points
0 votes
2 answers 296 views
296 views
Problem : I want to read my .csv file into Python (Spyder) but I am facing the error. Please find below my code : import csv mydata = open("C:\Users\miche\Documents\school\jaar2\MIK\2.6\vektis_agb_zorgverlener") mydata = csv.reader(mydata) print(mydata) I face the following error: SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 2-3: truncated \UXXXXXXXX escape
asked Dec 6, 2019 alecxe 7.5k points
0 votes
1 answer 45 views
45 views
Problem: Recently I have joined the angular2 project. But now I am stuck with below listed errors. The errors occurred if I tried to send my JSON objects to my backend. It may be due a parsing of my JSON objects. I am very new to angualar so unable to find ... (core.umd.js:3971) at ZoneDelegate.invokeTask (zone.js:274) at Zone.runTask (zone.js:151) at XMLHttpRequest.ZoneTask.invoke (zone.js:345)
asked Aug 5 Raphael Pacheco 4.9k points