Golang Warsaw #54 26 October 2023 – 18:30 7N, Puławska 182, WarszawaHostSponsorsAgenda 1. Go-first End to End Tests for Highly Stateful Features - Kuba Martin 2. Break / Your announcements (OpenSource com, wbarczynski@gmail.com Twitter/X: @golangwaw Slides: github.com/golangpoland/meetup_golang_warsaw Job Board: facebook.com/groups/golangpolandjobsQuestions? Join channel #poland on gophers.slack

Golang Warsaw #53 20 September 2023 – 18:30 Connectis_ (Varso Place), Chmielna 71, WarszawaHostSponsorsAgenda 1. Transitioning to Go - Robert Pajak 2. Break / Your announcements (OpenSource, event com, wbarczynski@gmail.com Twitter/X: @golangwaw Slides: github.com/golangpoland/meetup_golang_warsaw Job Board: facebook.com/groups/golangpolandjobsQuestions? Join channel #poland on gophers.slack

people it's more important to give a talk than to do it well Jakub Daligapart 0: who am IGolang Warsaw #12 (29.06.2017) Jakub Daliga - GraphQL w Go (PL)notable experience ~9 years of professional programming smallest: 3 people largest: 100k+ people working with people from 3 continents 5 talks given on Golang Warsaw (this is 6th) co-organizing the eventthis talk part 0: who am I part 1: philosophical outlook

Golang Warsaw #52 30 August 2023 – 17:30 / 7N Puławska 182 - WarsawaSpeakers for September 1. Topics from software engineering to implement/use X in Golang app 2. Software engineering + tech leadership CommunityWhere to find us? Slack: #poland / #poland-warsaw Twitter: @golangwaw Slides: https://github.com/golangpoland/meetup_golang_warsaw Job Board: https://www.facebook.com/groups/golangpolandjobs

How to start a VC-backed startup Golang Warsaw #59 Jacek Migdal, July 10, 2024Jacek @ CEO and co-founder of Quesma. Database gateway. Seed startup with $2.5Mln funding. Previous, 10 years at Sumo the jungle if you were trained in a zoo ● Build something impressive: ○ Community: e.g. Golang Warsaw ○ Technology: e.g. side project ● Excellent execution in high ambiguity ● Be versatile; look around

Localization of nonexistent times will raise an error by default. In [2]: dti.tz_localize('Europe/Warsaw') NonExistentTimeError: 2015-03-29 02:30:00 Transform nonexistent times to NaT or shift the times 03:30:00', '2015-03-29 04:30:00'], dtype='datetime64[ns]', freq='H') In [455]: dti.tz_localize('Europe/Warsaw', nonexistent='shift_forward') \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ 03:30:00+02:00', '2015-03-29 04:30:00+02:00'], dtype='datetime64[ns, Europe/Warsaw]', freq='H') In [456]: dti.tz_localize('Europe/Warsaw', nonexistent='shift_backward') \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

Localization of nonexistent times will raise an error by default. In [2]: dti.tz_localize('Europe/Warsaw') NonExistentTimeError: 2015-03-29 02:30:00 Transform nonexistent times to NaT or shift the times tz_localize('Europe/Warsaw', nonexistent='shift_forward') Out[454]: DatetimeIndex(['2015-03-29 03:00:00+02:00', '2015-03-29 03:30:00+02:00', '2015-03-29 04:30:00+02:00'], dtype='datetime64[ns, Europe/Warsaw]', freq='H') freq='H') In [455]: dti.tz_localize('Europe/Warsaw', nonexistent='shift_backward') Out[455]: DatetimeIndex(['2015-03-29 01:59:59.999999999+01:00', '2015-03-29 03:30:00+02:00', '2015-03-29 04:30:00+02:00']

Localization of nonexistent times will raise an error by default. In [2]: dti.tz_localize('Europe/Warsaw') NonExistentTimeError: 2015-03-29 02:30:00 Transform nonexistent times to NaT or shift the times 03:30:00', '2015-03-29 04:30:00'], dtype='datetime64[ns]', freq='H') In [454]: dti.tz_localize('Europe/Warsaw', nonexistent='shift_forward') \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ 03:30:00+02:00', '2015-03-29 04:30:00+02:00'], dtype='datetime64[ns, Europe/Warsaw]', freq='H') In [455]: dti.tz_localize('Europe/Warsaw', nonexistent='shift_backward') \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

Localization of nonexistent times will raise an error by default. In [2]: dti.tz_localize('Europe/Warsaw') NonExistentTimeError: 2015-03-29 02:30:00 Transform nonexistent times to NaT or shift the times 03:30:00', '2015-03-29 04:30:00'], dtype='datetime64[ns]', freq='H') In [454]: dti.tz_localize('Europe/Warsaw', nonexistent='shift_forward') \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ 03:30:00+02:00', '2015-03-29 04:30:00+02:00'], dtype='datetime64[ns, Europe/Warsaw]', freq='H') In [455]: dti.tz_localize('Europe/Warsaw', nonexistent='shift_backward') \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

Localization of nonexistent times will raise an error by default. In [2]: dti.tz_localize('Europe/Warsaw') NonExistentTimeError: 2015-03-29 02:30:00 Transform nonexistent times to NaT or shift the times tz_localize('Europe/Warsaw', nonexistent='shift_forward') Out[454]: DatetimeIndex(['2015-03-29 03:00:00+02:00', '2015-03-29 03:30:00+02:00', '2015-03-29 04:30:00+02:00'], dtype='datetime64[ns, Europe/Warsaw]', freq='H') freq='H') In [455]: dti.tz_localize('Europe/Warsaw', nonexistent='shift_backward') Out[455]: DatetimeIndex(['2015-03-29 01:59:59.999999999+01:00', '2015-03-29 03:30:00+02:00', '2015-03-29 04:30:00+02:00']