User:Jiehui Ma/Outreachy 2

Code:

# Import modules
import pywikibot


# 0. Connect to Wikidata repository with my account
site = pywikibot.Site('wikidata:wikidata', user='Jiehui Ma')
repo = site.data_repository()    


# 1. Add text to outreachy homepage
def add_text(text):
    page = pywikibot.Page(site, 'User:Jiehui_Ma/Outreachy_1')
    print(page.text)
    page.save(summary='Test', appendtext='\n' + text)
    return 1
# Try adding 'Hello'
add_text('Hello')


# 2. Print all information from an item page
def print_all_text(qid):
    item = pywikibot.ItemPage(repo, qid)
    print(item.text)
    return 1
# Try printing sandbox
print_all_text('Q4115189')


# 3. Print author information on article item page:
def get_item_cache(qid):
    item = pywikibot.ItemPage(repo, qid)
    return item.get()

def get_property_label(pid):
    property_page = pywikibot.PropertyPage(repo, pid)
    property_page.get()
    return property_page.labels['en']

def get_qualifiers(claim, pid):
    qualifier_label = get_property_label(pid)
    qualifier_value = claim.qualifiers.get(pid)[0].target
    print(f'{qualifier_label}: {qualifier_value}')
    return 1

def get_name_info(item_author, pid):
    return item_author.claims[pid][0].getTarget().labels['en']

def print_all_authors(article_qid):
    article_item = get_item_cache(article_qid)
    print(article_item['labels']['en'])
    # Fetch the author(P50) information
    if 'P50' not in article_item['claims']:
        print('No author stored as items.')
    else:
        for claim in article_item['claims']['P50']:
            # Get author name info & qualifiers
            p50_value = claim.getTarget()
            p50_item_dict = p50_value.get()
            print(f"{get_property_label('P50')}: {p50_item_dict['labels']['en']}")
            get_qualifiers(claim, 'P1545')
            get_qualifiers(claim, 'P1932')
            # Automatically follow links to author's own item page
            author_qid = p50_value.getID()
            item_author = pywikibot.ItemPage(repo, author_qid)
            if item_author.get():
                print('Redirected to item page, fetching author name components...')
            try:
                print(f"{get_property_label('P735')}: {get_name_info(item_author, 'P735')}")
            except:
                print('Given name item page is not in Wikidata.')
            try:
                print(f"{get_property_label('P734')}: {get_name_info(item_author, 'P734')}")
            except:
                print('Family name item page is not in Wikidata.')
    # Fetch the author name string(P2093) information
    if 'P2093' not in article_item['claims']:
        print('No author stored as strings.')
    else:
        for claim in article_item['claims']['P2093']:
            # Get author name string & qualifiers
            p2093_value = claim.getTarget()
            print(f"{get_property_label('P2093')}: {p2093_value}")
            get_qualifiers(claim, 'P1545')
    print('-------------------')
    return 1

Output (for detecting author information):

# Try printing the author info in several articles:
article_qid_list = ['Q60560235','Q69152190','Q104538340','Q59897278']
for article_qid in article_qid_list:
    print_all_authors(article_qid)

# Outputs:
Low delta-V near-Earth asteroids: A survey of suitable targets for space missions
author: Simone Ieva
series ordinal: 1
stated as: S. Ieva
Redirected to item page, fetching author name components...
given name: Simone
Family name item page is not in Wikidata.
author: A. Rossi
series ordinal: 9
stated as: A. Rossi
Redirected to item page, fetching author name components...
given name: Alessandro
family name: Rossi
author: Elisabetta Dotto
series ordinal: 2
stated as: E. Dotto
Redirected to item page, fetching author name components...
given name: Elisabetta
family name: Dotto
author name string: D. Perna
series ordinal: 3
author name string: M. A. Barucci
series ordinal: 4
author name string: F. Bernardi
series ordinal: 5
author name string: S. Fornasier
series ordinal: 6
author name string: F. De Luise
series ordinal: 7
author name string: E. Perozzi
series ordinal: 8
author name string: J. R. Brucato
series ordinal: 10
-------------------
An investigation of the low-{Delta}V near-Earth asteroids (341843) 2008 EV5 and (52381) 1993 HA Two suitable targets for the ARM and MarcoPolo-M5 space missions
No author stored as items.
author name string: Perna D.
series ordinal: 1
author name string: Popescu M.
series ordinal: 2
author name string: Monteiro F.
series ordinal: 3
author name string: Lantz C.
series ordinal: 4
author name string: Lazzaro D.
series ordinal: 5
author name string: Merlin F.
series ordinal: 6
-------------------
Surface composition of near-Earth Asteroid (4953) 1990 MU: Possible fragment of (6) Hebe
author: Vishnu Reddy
series ordinal: 3
stated as: Vishnu Reddy
Redirected to item page, fetching author name components...
given name: Vishnu
family name: Reddy
author name string: Michael S. Kelley
series ordinal: 1
author name string: Michael J. Gaffey
series ordinal: 2
author name string: Juan A. Sanchez
series ordinal: 4
-------------------
In-Flight Calibration of the Near Earth Asteroid Rendezvous Mission's Near Infrared Spectrometer I. Initial Calibrations
author: Noam Izenberg
series ordinal: 1
stated as: N Izenberg
Redirected to item page, fetching author name components...
given name: Noam
Family name item page is not in Wikidata.
No author stored as strings.
-------------------