[innovaciones]

I also bumped into this on a Jarvis platform just now. Workaround that also worked for me:

Code:

Code:
try:
    datetime.strptime(date_string, format)
except TypeError:
    datetime(*(time.strptime(date_string, format)[0:6]))

The same problem. Can confirm workaround.
Big thanks !!!

Now I bumped into this on a Krypton platform, workaround worked perfectly, thank you!!

[boogiepop]

Below is an alternative approach to solve the problem, if you can not modify the file that has datetime.strptime is used.

It simply overwrites the datetime.strptime method in namespace, so you dont have to modify the source file where datetime.strptime is used.

PHP Code:

import datetime
import time

#fix for datatetime.strptime returns None
class proxydt(datetime.datetime):
    def __init__(self, *args, **kwargs):
        super(proxydt, self).__init__(*args, **kwargs)

    @staticmethod
    def strptime(date_string, format):
        return datetime.datetime(*(time.strptime(date_string, format)[0:6]))

datetime.datetime = proxydt 


[FreakMurderer]

Last example didn't work for, this one works:

python:


import datetime

import time



#fix for datatetime.strptime returns None

class proxydt(datetime.datetime):

    def __init__(self, *args, **kwargs):

        super(proxydt, self).__init__(*args, **kwargs)



    @classmethod

    def strptime(cls, date_string, format):

        return datetime(*(time.strptime(date_string, format)[0:6]))



datetime.datetime = proxydt

from datetime import datetime

P.S. Now - 2019, topic was started in 2011. Hmm.... Awesome

[BoeboeBE]

Absolutely insanity that this bug is not fixed in python yet and one needs to override this like the suggested work-around (which works, so thanks). I just spend one hour going crazy looking for typo's and other ghosts in my code.

[Montellese]

Last example didn't work for, this one works:

python:


import datetime

import time



#fix for datatetime.strptime returns None

class proxydt(datetime.datetime):

    def __init__(self, *args, **kwargs):

        super(proxydt, self).__init__(*args, **kwargs)



    @classmethod

    def strptime(cls, date_string, format):

        return datetime(*(time.strptime(date_string, format)[0:6]))



datetime.datetime = proxydt

from datetime import datetime

P.S. Now - 2019, topic was started in 2011. Hmm.... Awesome

thanks for this. I'm migrating my add-on to Python 3 and with above code I got the following error:

TypeError: object.__init__() takes no arguments

I had to change it to

python:


import datetime

from sys import version_info



class proxydt(datetime.datetime):

    def __init__(self, *args, **kwargs):

        if version_info < (3,):

            super(proxydt, self).__init__(*args, **kwargs)



    def __new__(cls, *args, **kwargs):

        return super(proxydt, cls).__new__(cls, *args, **kwargs)



    @classmethod

    def strptime(cls, date_string, format):

        import time

        return datetime(*(time.strptime(date_string, format)[0:6]))



datetime.datetime = proxydt

from datetime import datetime

But I have not tested this with Python 2 yet so no guarantees...

[boogiepop]

I had written that workaround several years ago and i dont remember why i used @classmethod. Instead @staticmethod would be much way cleaner. And there is no need to override __init__ method as well.

EDIT: I have used staticmethod in the first place ok, but still overriding __init__ was unnecessary. Super has variance between py2 and py3, this will also eliminate the py3 issues.

python:


import datetime



#fix for datatetime.strptime returns None

class proxydt(datetime.datetime):

    @staticmethod

    def strptime(date_string, format):

        import time

        return datetime.datetime(*(time.strptime(date_string, format)[0:6]))



datetime.datetime = proxydt

[djlucas456]

I greet a newcomer to Python, so I'll try to make a simple context menu for myself. And I came across this error, but I don't know how to implement the fix in my code. Can anyone advise me please?

the addon only works once and then discards the error mentioned here.

Code:

​​​​​​​import xbmc
import xbmcgui
import time
from datetime import datetime, timedelta

title = xbmc.getInfoLabel('Listitem.Title')
olddate = xbmc.getInfoLabel('Listitem.Date')
start = xbmc.getInfoLabel('Listitem.StartTime')
name = xbmc.getInfoLabel('ListItem.ChannelName')
url = '/ADRESA'
get = '_'
newdate = datetime.strptime(olddate, "%d.%m.%Y %H:%M") + (timedelta(hours=-2))

file = 'ADRESA' + newdate.strftime("%Y%m%d") + get + name.replace(" ", "_") + get + newdate.strftime("%Y%m%d_%H%M%S") + url

xbmc.Player().play(file)

[Takezo36]

Well remove that from datetime import datetime from your code and put boogiepops code underneath your imports. that should fix it.

[djlucas456]

Not work.. error log

Code:

ERROR: EXCEPTION Thrown (PythonToCppException) : -->Python callback/script returned the following error<--
                                             - NOTE: IGNORING THIS CAN LEAD TO MEMORY LEAKS!
                                            Error Type: <type 'exceptions.AttributeError'>
                                            Error Contents: 'module' object has no attribute 'strftime'
                                            Traceback (most recent call last):
                                              File "/Users/lukasmraz/Library/Application Support/Kodi/addons/context.pvr.backtvgo/addon.py", line 20, in <module>
                                                newdate = datetime.strftime(olddate, "%d.%m.%Y %H:%M") + (timedelta(hours=-2))
                                            AttributeError: 'module' object has no attribute 'strftime'
                                            -->End of Python script error report<--

Code:

import xbmc
import xbmcgui
import datetime

#fix for datatetime.strptime returns None
class proxydt(datetime.datetime):
    @staticmethod
    def strptime(date_string, format):
        import time
        return datetime.datetime(*(time.strptime(date_string, format)[0:6]))

datetime.datetime = proxydt

title = xbmc.getInfoLabel('Listitem.Title')
olddate = xbmc.getInfoLabel('Listitem.Date')
start = xbmc.getInfoLabel('Listitem.StartTime')
name = xbmc.getInfoLabel('ListItem.ChannelName')
url = 'ADRESA'
get = '_'
newdate = datetime.strptime(olddate, "%d.%m.%Y %H:%M") + (timedelta(hours=-2))

file = 'ADRESA' + newdate.strftime("%Y%m%d") + get + name.replace(" ", "_") + get + newdate.strftime("%Y%m%d_%H%M%S") + url

xbmc.Player().play(file)

[hungry person]

Sorry if I'm being a complete noob here (I generally don't touch python) but I've mostly seen it qualified as datetime.datetime.strptime()

[djlucas456]

yes it works. but now again "timedelta" doesn't work when deleting "from datetime import datetime, timedelta"

[hungry person]

yes it works. but now again "timedelta" doesn't work when deleting "from datetime import datetime, timedelta"

Can't you just qualify it the same way: datetime.timedelta? Sorry, I generally get lost with python's import statements...

[djlucas456]

fix.. work me.. (timedelta(hours=-2) > (datetime.timedelta(hours=-2)

thanks

[jbinkley60]

Thanks, this works, but I ended up taking a simpler example from the Python doc.
 

Code:

try:
    datetime.strptime(date_string, format)
except TypeError:
    datetime(*(time.strptime(date_string, format)[0:6]))

I ran into this issue (type error on second iteration of strptime) over the weekend porting an addon to Matrix and adding some new functionality.   The workaround above worked perfectly. 


Thanks,

Jeff

[fbacher]

As already mentioned, this is a known problem to embedded python, which Kodi uses. There is not sufficient interest in donors to Python development to fix the problem.The problem is worse than you think:

1. I have seen Kodi crash due to this.
   
2. As I understand it, the root problem is that the _strptime module is loaded once in the lifetime of a process which Python runs, but when the interpreter is reinitialized (say, to run another addon, or on re-launch of addon) then this module is corrupted / not properly reinitialized. There is not a simple fix for this in the runtime.
   
3. Since addons don't run in a vacuum, other code that does not account for this can break your addon or crash Kodi.
   
4. The time.strptime workaround is good, but not perfect. time.strptime does not support sub-second times and can throw exceptions on format strings that it does not understand (although we don't hear a lot of complaints about this, but, who really needs microsecond accuracy in everyday usage).
   
5. I think that a combination Monkey Patch and calling a substitute function is best. The Monkey Patch is global to the embedded sub-process (each addon runs in it's own subprocess). The Monkey patch will protect you from other code that hits this problem. Having code call a substitute function (my_striptime) is better documented. Actually the Monkey patch should simply use my_striptime.
   

I'm implementing a Monkey patch for several addons that I am working on. I'll share when I'm happy with it. I would like to bullet proof it a bit against format strings that it doesn't understand. email.utils.parsedate_tz might be useful for when the format string is not understood. It appears that parsedate_tz does not depend upon datetime.strptime.

As mentioned in an earlier post, the official bug is: https://bugs.python.org/issue27400