API

sopn_publish_date

class sopn_publish_date.StatementPublishDate
european_parliament(poll_date: datetime.date) → datetime.date

Calculate the publish date for an election to the European Parliament

This is set out in The European Parliamentary Elections (Amendment) Regulations 2009

Parameters:poll_date – a datetime representing the date of the poll
Returns:a datetime representing the expected publish date
for_id(election_id: str) → datetime.date

Calculate the publish date for an election given in uk-election-ids format, or raise an exception if that election id is ambiguous (could correspond to elections in multiple countries with different electoral legislation)

Parameters:election_id – a string representing an election id in uk-election-ids format
Returns:a datetime representing the expected publish date
greater_london_assembly(poll_date: datetime.date) → datetime.date

Calculate the publish date for an election to the Greater London Assembly

This is set out in The Greater London Authority Elections (Amendment) Rules 2016

Parameters:poll_date – a datetime representing the date of the poll
Returns:a datetime representing the expected publish date
local(poll_date: datetime.date, country: sopn_publish_date.calendars.Country)

Calculate the publish date for a local election.

This is set out in:

Parameters:
  • poll_date – a datetime representing the date of the poll
  • country – the country in which the election is being run
Returns:

a datetime representing the expected publish date

mayor(poll_date: datetime.date) → datetime.date

Calculate the publish date for an election to the position of Mayor in England and Wales

This is set out in The Local Authorities (Mayoral Elections) (England and Wales) (Amendment) Regulations 2014

Parameters:poll_date – a datetime representing the date of the poll
Returns:a datetime representing the expected publish date
national_assembly_for_wales(poll_date: datetime.date) → datetime.date

Calculate the publish date for an election to the National Assembly for Wales

This is set out in The National Assembly for Wales (Representation of the People) (Amendment) Order 2016

Parameters:poll_date – a datetime representing the date of the poll
Returns:a datetime representing the expected publish date
northern_ireland_assembly(poll_date: datetime.date) → datetime.date

Calculate the publish date for an election to the Northern Ireland Assembly

This is set out by Schedule 5, Rules 1 and 2 of The Northern Ireland Assembly (Elections) (Amendment) Order 2009

Parameters:poll_date – a datetime representing the date of the poll
Returns:a datetime representing the expected publish date
police_and_crime_commissioner(poll_date: datetime.date) → datetime.date

Calculate the publish date for an election to the position of Police and Crime Commissioner

This is set out in The Police and Crime Commissioner Elections (Amendment) Order 2014

Parameters:poll_date – a datetime representing the date of the poll
Returns:a datetime representing the expected publish date
scottish_parliament(poll_date: datetime.date) → datetime.date

Calculate the publish date for an election to the Scottish Parliament

This is set out in The Scottish Parliament (Elections etc.) Order 2015

Parameters:poll_date – a datetime representing the date of the poll
Returns:a datetime representing the expected publish date
uk_parliament(poll_date: datetime.date, country: sopn_publish_date.calendars.Country = <Country.ENGLAND: 1>)

Calculate the publish date for an election to the Parliament of the United Kingdom

This is set out in Electoral Registration and Administration Act 2013

Parameters:
  • poll_date – a datetime representing the date of the poll
  • country – the country in which the election is being run
Returns:

a datetime representing the expected publish date

sopn_publish_date.calendars

class sopn_publish_date.calendars.BankHolidayCalendar(dates)

A calendar that honours the standard 5-day week in addition to the input list of dates.

class sopn_publish_date.calendars.Country

The countries of the United Kingdom.

ENGLAND = 1
NORTHERN_IRELAND = 2
SCOTLAND = 3
WALES = 4
class sopn_publish_date.calendars.UnitedKingdomBankHolidays

A representation of the bank holiday calendars in the United Kingdom.

This class exposes a function for each unique calendar: England & Wales, Northern Ireland, and Scotland.

england_and_wales() → sopn_publish_date.calendars.BankHolidayCalendar
Returns:a calendar representation of bank holidays in England and Wales
from_country(country: sopn_publish_date.calendars.Country) → sopn_publish_date.calendars.BankHolidayCalendar

Return the bank holiday calendar for the input country.

Parameters:country – the country to retrieve the calendar for
Returns:the corresponding calendar
northern_ireland() → sopn_publish_date.calendars.BankHolidayCalendar
Returns:a calendar representation of bank holidays in Northern Ireland
scotland() → sopn_publish_date.calendars.BankHolidayCalendar
Returns:a calendar representation of bank holidays in Scotland
sopn_publish_date.calendars.as_date(timestamp) → datetime.date

Transforms a pandas._libs.tslibs.Timestamp into a datetime.date object

Parameters:timestamp – a pandas Timestamp object
Returns:the equivalent python date object
sopn_publish_date.calendars.holiday_from_datetime(name: str, original_datetime: datetime.datetime) → pandas.tseries.holiday.Holiday

Transforms a named datetime.datetime into a pandas.tseries.holiday.Holiday

Parameters:
  • name – the name of the holiday
  • original_datetime – a representation of the holiday as a datetime
Returns:

the pandas.tseries.holiday.Holiday representation of the datetime

sopn_publish_date.calendars.working_days(count: int, calendar: sopn_publish_date.calendars.BankHolidayCalendar) → pandas.tseries.offsets.CustomBusinessDay

A pandas representation of a period with the given number of working days using a specified calendar.

Parameters:
  • count – number of working days
  • calendar – calendar representing bank holidays in a specific country
Returns:

a number of days to be used in date arithmetic that honours weekends and bank holidays

sopn_publish_date.election_ids

exception sopn_publish_date.election_ids.AmbiguousElectionId(election_id: str)

An exception type to represent when an election id (usually a group such as local.2019-05-02) can correspond to elections in multiple countries with different legislation governing the publish date of Statements of Persons Nominated.

exception sopn_publish_date.election_ids.InvalidElectionId(election_id: str)

An exception type to represent when an election id does not confirm to DemocracyClub’s uk-election-ids format

sopn_publish_date.election_ids.type_and_poll_date(election_id: str) -> (<class 'str'>, <class 'datetime.date'>)

Extract election_type (e.g. parl, local, mayor) and poll_date from an election id.

Parameters:election_id

a string representing an election id in uk-election-ids format

Returns:a tuple (election_type: str, poll_date: date)