Python error causes HTTPError 400 Client error, but after manually accessing the URL, they temporarily find work

Question

When I run this code in iPython (Python 2.7):

from requests import get
_get = get('http://stats.nba.com/stats/playergamelog', params={'PlayerID': 203083, 'Season':'2015-16', 'SeasonType':'Regular Season'})
print _get.url
_get.raise_for_status()
_get.json()

I get:

http://stats.nba.com/stats/playergamelog?PlayerID=203083&Season=2015-16&SeasonType=Regular+Season
---------------------------------------------------------------------------
HTTPError                                 Traceback (most recent call last)
<ipython-input-5-8f8343b2c4cd> in <module>()
      1 _get = get('http://stats.nba.com/stats/playergamelog', params={'PlayerID': 203083, 'Season':'2015-16', 'SeasonType':'Regular Season'})
      2 print _get.url
----> 3 _get.raise_for_status()
      4 _get.json()

/Library/Python/2.7/site-packages/requests/models.pyc in raise_for_status(self)
    849 
    850         if http_error_msg:
--> 851             raise HTTPError(http_error_msg, response=self)
    852 
    853     def close(self):

HTTPError: 400 Client Error: Bad Request

However, if I go to the URL in the browser, it works. Then, when I go back to the code and run it again after manually visiting the URL in my browser (Chrome running iPython), the code runs without errors. However, it may return to an increase in error on successive starts.

This code worked for me hundreds, and not thousands of times without problems. How to fix this error?

Thanks.

Answer 1

HTTPError: 400 Client Error: Bad Request , . , HTTP-, user-agent.

, User-Agent Firefox:

# No User-Agent
>>> _get = get('http://stats.nba.com/stats/playergamelog', params={'PlayerID': 203082, 'Season':'2015-16', 'SeasonType':'Regular Season'})
>>> _get.raise_for_status()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Python27\lib\site-packages\requests\models.py", line 840, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 400 Client Error: Bad Request for url: http://stats.nba.com/stats/playergamelog?PlayerID=203082&Season=2015-16&SeasonType=Regular+Season

# This time, set user-agent to mimic a desktop browser
>>> headers = {'user-agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0'}
>>> _get = get('http://stats.nba.com/stats/playergamelog', params={'PlayerID': 203082, 'Season':'2015-16', 'SeasonType':'Regular Season'}, headers=headers)
>>> _get.raise_for_status()
>>>
# no error

, , URL- , - .

Alastair McCormack, stats.nba.com Akamai CDN, , , , "" /URI, . URI, CDN node, .

, URL- , CDN . 400.