Re: [Tutor] How to convert string to date time format?
On Fri, Jul 19, 2019 at 10:44:36PM -0400, C W wrote:
> Hello all,
>
> I have a date time string that looks like the following.
>
> 02015-07-01 00:01:44.538420-08:00
> 12015-07-01 00:27:58.717530-08:00
> 22017-07-01 07:07:48.391376-08:00
I assume that the leading number and spaces "0" etc are NOT part of
the strings.
> I have tried the following two different methods, both did not work.
> Method one: pandas
> import pandas as pd
> stamp = pd.to_datetime(my_string, format='%Y%m%d %H:%M:%S')
>
> Method two: datetime package
> from datetime import datetime
> datetime.strptime(my_string, '%Y-%m-%d %H:%M:%S')
>
>
> Are both ways suppose to work?
Not unless the string format matches the actual string. You can't expect
to convert a string unless it matches the format.
> Also, does it matter if there are decimals
> after seconds?
Of course it matters.
Did you read the error message? The single most important skill for a
programmer is to READ THE ERROR MESSAGE and pay attention to what it
tells you went wrong:
py> datetime.strptime('2015-07-01 00:01:44.538420-08:00', '%Y-%m-%d %H:%M:%S')
Traceback (most recent call last):
File "", line 1, in
File "/usr/local/lib/python3.5/_strptime.py", line 510, in _strptime_datetime
tt, fraction = _strptime(data_string, format)
File "/usr/local/lib/python3.5/_strptime.py", line 346, in _strptime
data_string[found.end():])
ValueError: unconverted data remains: .538420-08:00
See how the error message tells you that it couldn't convert the string
because there is data left over at the end. The first thing to do is
handle the microseconds.
Googling gets the answer: use "%f" as the code for fractional seconds.
https://duckduckgo.com/?q=strptime+seconds+with+decimals
py> datetime.strptime('2015-07-01 00:01:44.538420-08:00', '%Y-%m-%d
%H:%M:%S.%f')
Traceback (most recent call last):
File "", line 1, in
File "/usr/local/lib/python3.5/_strptime.py", line 510, in _strptime_datetime
tt, fraction = _strptime(data_string, format)
File "/usr/local/lib/python3.5/_strptime.py", line 346, in _strptime
data_string[found.end():])
ValueError: unconverted data remains: -08:00
Now we're making progress! The error message has changed. Now you just
need to decide what the "-08:00" part means, and change the format
string appropriately.
--
Steve
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Re: [Tutor] Stylometry Help
On 7/19/19 4:53 AM, ali...@mailbox.org wrote: > Hello together, > > I try to write a Python tool but after hours of trying , reading and looking > for help nothing an no one would help me. So this is my most desperate call > for help. I attached the project and my required files. If there is someone > who would help me not loosing my scholarship and so beeing excluded from > university you'll be my hero. > > > Best regards > > Hanna Hanna, this ia bit over the top. If you send code - with descriptions of specific problems and what you've tried, not just a huge blob of code with a non-specific "it doesn't work" - pepople here will happily try to help. There are other places you can look, like Stack Overflow, again it will require asking targeted questions. But you really can't expect us, as a band of spare-time volunteers, to bail you out of a real or imagined situation where if you can't solve the problem you'll be sent down. If it's that dire, there is usually paid tutoring available at most institutions or hanging around them, and potential loss of a scholarship ought to make that investment worthwhile. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Python Imported Code
On 25 Jun 2019 15:50, stephen.m.sm...@comcast.net wrote: Introduction: I have written a 'program' that does some reasonable screen scraping off of a specific website. The program has gotten too large so I have tried to segment it into logical pieces (tkinter logic as a start) but I am having problems. Specifically I need to pass several dictionaries to the module (imported code) that validates some user selection and into the code that navigates through the website. 》》 Hi, not sure if you could use it here, but I was triggered by the term "validation": * Tkinter allows you to define a validationcommand, https://stackoverflow.com/questions/4140437/interactively-validating-entry-widget-content-in-tkinter * You can also define tracers. These are functions that are triggered when a Tkinter var (e.g StringVar) is changed. * You can also bind events to a function. For example a event from an Entry checks the entry contents and colors it red if it's invalid. It's been a while since I've used this but those tricks may come in handy! Albert-Jan ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] Stylometry Help
On Jul 20, 2019 7:56 AM, wrote: > > Hello together, > > I try to write a Python tool but after hours of trying , reading and looking for help nothing an no one would help me. So this is my most desperate call for help. I attached the project and my required files. Unfortunately the tutor list does not forward attachments. If the files are not too big just include them in the body of the email. Otherwise you'll have to store them in the cloud and give us a link. Be sure to reply all so we all get to see your problem. Bob gailer ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] How to convert string to date time format?
Try python-dateutil - I found it to be one of the better python modules for dealing with dates. You may have to replace or strip some of the string. Johnf On 7/19/19 7:44 PM, C W wrote: Hello all, I have a date time string that looks like the following. 02015-07-01 00:01:44.538420-08:00 12015-07-01 00:27:58.717530-08:00 22017-07-01 07:07:48.391376-08:00 I have tried the following two different methods, both did not work. Method one: pandas import pandas as pd stamp = pd.to_datetime(my_string, format='%Y%m%d %H:%M:%S') Method two: datetime package from datetime import datetime datetime.strptime(my_string, '%Y-%m-%d %H:%M:%S') Are both ways suppose to work? Also, does it matter if there are decimals after seconds? Thanks a lot! ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
[Tutor] How to convert string to date time format?
Hello all, I have a date time string that looks like the following. 02015-07-01 00:01:44.538420-08:00 12015-07-01 00:27:58.717530-08:00 22017-07-01 07:07:48.391376-08:00 I have tried the following two different methods, both did not work. Method one: pandas import pandas as pd stamp = pd.to_datetime(my_string, format='%Y%m%d %H:%M:%S') Method two: datetime package from datetime import datetime datetime.strptime(my_string, '%Y-%m-%d %H:%M:%S') Are both ways suppose to work? Also, does it matter if there are decimals after seconds? Thanks a lot! ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
[Tutor] Stylometry Help
Hello together, I try to write a Python tool but after hours of trying , reading and looking for help nothing an no one would help me. So this is my most desperate call for help. I attached the project and my required files. If there is someone who would help me not loosing my scholarship and so beeing excluded from university you'll be my hero. Best regards Hanna ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
