ENH: add weekday_name to DatetimeIndex and .dt · Issue #11128 · pandas-dev/pandas (original) (raw)

Skip to content

Navigation Menu

• • GitHub Copilot Write better code with AI
  • GitHub Advanced Security Find and fix vulnerabilities
  • Actions Automate any workflow
  • Codespaces Instant dev environments
  • Issues Plan and track work
  • Code Review Manage code changes
  • Discussions Collaborate outside of code
  • Code Search Find more, search less
• Explore
  • Learning Pathways
  • Events & Webinars
  • Ebooks & Whitepapers
  • Customer Stories
  • Partners
  • Executive Insights
• • GitHub Sponsors Fund open source developers
  • The ReadME Project GitHub community articles
• • Enterprise platform AI-powered developer platform
• Pricing

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Sign up

Appearance settings

Description

These names exist already in pd.tslib (as the below weedays calc), should just create them as a variable so can import it directly here.

In [1]: import calendar
In [25]: s = pd.Series(list(range(10)), pd.date_range('2015-09-01', '2015-09-10'))

In [26]: s2 = s.to_frame('value').assign(weekday=Series(s.index.weekday).map(Series(weekdays)).values)

In [27]: weekdays = [calendar.day_name[i].lower() for i in range(7)]

In [28]: s2 = s.to_frame('value').assign(weekday=Series(s.index.weekday).map(Series(weekdays)).values)

In [29]: s2
Out[29]: 
            value    weekday
2015-09-01      0    tuesday
2015-09-02      1  wednesday
2015-09-03      2   thursday
2015-09-04      3     friday
2015-09-05      4   saturday
2015-09-06      5     sunday
2015-09-07      6     monday
2015-09-08      7    tuesday
2015-09-09      8  wednesday
2015-09-10      9   thursday