I am having JSON syntax issues when I am using the following code code: https://github.com/clarkbk/streeteasy-analysis
Using this JSON in buildings.json
{
"buildings": [
{
"name": "Henry Hall",
"addr": "https://streeteasy.com/nyc/property_activity/past_transactions_component/799324?all_activity=true&show_rentals=true&style=xls",
"id": 799324,
}
]
}
I am getting the following error:
2019-05-25 16:04:26,641 - INFO - Starting...
Traceback (most recent call last):
File "run.py", line 27, in <module>
data = json.load(f)
File "/usr/lib/python3.6/json/__init__.py", line 299, in load
parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
File "/usr/lib/python3.6/json/__init__.py", line 354, in loads
return _default_decoder.decode(s)
File "/usr/lib/python3.6/json/decoder.py", line 339, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/python3.6/json/decoder.py", line 355, in raw_decode
obj, end = self.scan_once(s, idx)
json.decoder.JSONDecodeError: Expecting property name enclosed in double quotes: line 9 column 5 (char 220)
root#LAPTOP-4QGC19OR:/home/HN/streeteasy-analysis#
I have researched for a few hours now on how to fix this but can't come up with a fix. I am not that familiar with JSON in general but I don't know where I am not double qouting properly. Appreciate any help with this.
The line number gives a good hint
you want:
"id": 799324
}
(note no comma after the last element)
json isn't python ast.literal_eval, if there's a comma on last element it fails, because it expects another property as the message states (Expecting property name enclosed in double quotes explains that, although the message could be better, as this error is very common)
If you have data like this, you can use ast.literal_eval on it instead, it will work without modifications (unless there are false or null json booleans/null-pointers)
Related
For a couple of days i've been trying to learn how to use JSON in python, but even if i copy everything from tutorials it still won't load.
import json
data = '''
{
"people":[
{
"name": "veljko",
"age":"20",
"email": veljkov02#gail.com,
"educated": "true"
} ,
{
"name":"aleksandar",
"age":"24",
"email":"marko99#gmail.com",
"educated":"false"
}
]
}
'''
men = json.loads(data)
print(men)
(Ignore the random words used in code, it's just how i learn)
It just keeps giving the same error messages, i've tried with the most simple JSON but it's still the same.
Traceback (most recent call last):
File "C:\Users\*********\Desktop\code3\json.py", line 21, in <module>
men = json.loads(data)
File "C:\Users\************\AppData\Local\Programs\Python\Python310\lib\json\__init__.py", line 346, in loads
return _default_decoder.decode(s)
File "C:\Users\*************\AppData\Local\Programs\Python\Python310\lib\json\decoder.py", line 337, in decode.
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "C:\Users\************\AppData\Local\Programs\Python\Python310\lib\json\decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 7 column 14 (char 75)
Process finished with exit code 1
Please help, i'm a begginer and am not sure how to solve this problem.
You are missing quotes around veljkov02#gail.com. You need to change it to "veljkov02#gail.com", so that it is interpreted as a string. The exception tells you which line and character the error is at, so double check that line when you get errors like these.
i have this code here:
import json
with open("pass_file.txt", "r") as file:
password = json.loads(file.read())
it calls this error:
Traceback (most recent call last):
File "testdoc.py", line 9, in <module>
print(json.loads(file.read()))
File "C:\Program Files\Python37\lib\json\__init__.py", line 348, in loads
return _default_decoder.decode(s)
File "C:\Program Files\Python37\lib\json\decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "C:\Program Files\Python37\lib\json\decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
I dont know why this is happening because i have the same code on another file just with different variable name and file name and it works file. I did notice another similar question about a similar error but it didnt answer my question.
Thanks in advance :)
What is the content of you pass_file.txt ? The python code use json.loads so it expect JSON formated content in the pass_file.txt
For example for a string, the content of this file will be "hello world"
If you don't put quotes, the JSON parsing process will fail.
I am trying to pass the following JSON text into my python code.
{"platform": "android", "version": "6.0.1"}
My code is as follows.
import sys
import json
data = json.loads(sys.argv[1])
print(str(data))
When running the following on Windows 10 PowerShell,
python jsonTest.py '{"platform": "android", "version": "6.0.1"}'
I get the following:
Traceback (most recent call last):
File "jsonTest.py", line 3, in <module>
data = json.loads(sys.argv[1])
File "C:\Users\Rishabh Bhatnagar\AppData\Local\Programs\Python\Python36-
32\lib\json\__init__.py", line 354, in loads
return _default_decoder.decode(s)
File "C:\Users\Rishabh Bhatnagar\AppData\Local\Programs\Python\Python36-
32\lib\json\decoder.py", line 339, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "C:\Users\Rishabh Bhatnagar\AppData\Local\Programs\Python\Python36-
32\lib\json\decoder.py", line 355, in raw_decode
obj, end = self.scan_once(s, idx)
json.decoder.JSONDecodeError: Expecting property name enclosed in double
quotes: line 1 column 2 (char 1)
As far as I know, I take my code, and pass the JSON text properly. I can't figure out what I'm doing wrong. I know the JSON text is valid (checked with https://jsonlint.com/). Thanks.
So I figured it out.
sys.argv[1]
The above line was taking my Json text below and taking out the quotes from it.
{"platform": "android", "version": "6.0.1"}
into
{platform: android, version: 6.0.1}
My workaround is to run it as follows.
Python jsonTest.py '{\"platform\": \"android\", \"version\": \"6.0.1\"}'
I will try to find a better way, but for today, I'm done.
import sys
import json
data = json.loads(sys.argv[1].replace("'", '"'))
print(str(data))
This seems to work for me, python 3.6 when calling with python jsonTest.py "{'platform': 'android', 'version': '6.0.1'}"
I am currently tring to work with import a json input that is accepted by Python through a commandline argument and I am trying to save the different values to JSON to a list. I am having issues with my code given below and have attached both the code and the error I get below. Any help much appreciated.
import sys
import json
def lookup1 ():
jsonData = json.loads(sys.argv[1])
print jsonData
jsonList = [jsonData['proxy'],jsonData['OS']]
print jsonList
lookup1()
The error is given below:
$ python dynamicMapper.py '{'proxy':1,'OS':2}'
Traceback (most recent call last):
File "dynamicMapper.py", line 9, in <module>
lookup1()
File "dynamicMapper.py", line 4, in lookup1
jsonData = json.loads(sys.argv[1])
File "/usr/lib/python2.7/json/__init__.py", line 338, in loads
return _default_decoder.decode(s)
File "/usr/lib/python2.7/json/decoder.py", line 366, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/python2.7/json/decoder.py", line 382, in raw_decode
obj, end = self.scan_once(s, idx)
ValueError: Expecting property name: line 1 column 2 (char 1)
The commadline argunet that I give is python dynamicMapper.py '{'proxy':1,'OS':2}'
I am not able to find out what is causing this error and if my approach is right.
The script is working fine, you just need to call it the right way:
python dynamicMapper.py '{"proxy":1,"OS":2}'
{u'OS': 2, u'proxy': 1}
[1, 2]
In JSON the strings are quoted with double quotes instead of single quotes. You also need to quote the string passed to script so that shell understands it being a single argument.
I am trying to parse some text files containing JSON objects in Python using the json.load() method. It's working for one set of them, but for this one it will not:
{
"mapinfolist":{
"mapinfo":[
{"sku":"00028-0059","price":"38.35","percent":"50","basepercent":"50","exact":0,"match":0,"roundup":0}
,{"sku":"77826-7230","price":"4.18","percent":"60","basepercent":"60","exact":1,"match":0,"roundup":0}
,{"sku":"77827-1310","price":"2.36","percent":"60","basepercent":"60","exact":1,"match":0,"roundup":0}
,{"sku":"77827-2020","price":"2.36","percent":"60","basepercent":"60","exact":1,"match":0,"roundup":0}
,{"sku":"77827-3360","price":"2.36","percent":"60","basepercent":"60","exact":1,"match":0,"roundup":0}
,{"sku":"77827-4060","price":"2.36","percent":"60","basepercent":"60","exact":1,"match":0,"roundup":0}
,{"sku":"77827-4510","price":"2.36","percent":"60","basepercent":"60","exact":1,"match":0,"roundup":0}
,{"sku":"77827-7230","price":"2.36","percent":"60","basepercent":"60","exact":1,"match":0,"roundup":0}
],
"count":2
}
}
It is in a file called 'map.txt' - I open it using open('map.txt') and then call json.load(). When I run my test program (test.py), the following error trace is generated:
Traceback (most recent call last):
File "test.py", line 28, in <module>
main()
File "test.py", line 23, in main
map_list = json.load(f1)
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/json/__init__.py", line 268, in load
parse_constant=parse_constant, object_pairs_hook=object_pairs_hook, **kw)
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/json/__init__.py", line 318, in loads
return _default_decoder.decode(s)
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/json/decoder.py", line 343, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/json/decoder.py", line 361, in raw_decode
raise ValueError(errmsg("Expecting value", s, err.value)) from None
ValueError: Expecting value: line 1 column 1 (char 0)
The JSON object is valid - when I put it into https://www.jsoneditoronline.org/ it is parsed and displayed correctly, so I am having trouble identifying what could be stopping it from working when I try to do it in Python. Any advice would be much appreciated. Thanks!
EDIT: Here's my code.
import json
def main():
with open('map.txt') as f1:
map_list = json.load(f1)
Trying map_list = json.loads(f1.read()) also does not work and gives me an almost identical error trace.
EDIT - RESOLVED:
I just copied and pasted FROM map.txt into a new TextEdit file map2.txt and used the new file instead, and it works now. I copied directly from the old file and made no changes - the only difference is that it is a different file. I can't make heads or tails of why that would be - any ideas? I would like to understand what may have happened so I can avoid the problem in the future.
Does the following solution work for you?
import json
f = open("map.txt")
map = json.loads(f.read())
Python Docs
maybe try to read all the file to string and then use json.loads
def yourfunc():
file = open('map.txt')
json_string = file.read()
map = json.loads(json_string)