The prized transistor
Three people shared a Nobel prize "for their researches on semiconductors and their discovery of the transistor effect". We can filter on "transistor" as a substring of a laureate's "prizes.motivation" field value to find these laureates.
Este exercício faz parte do curso
Introduction to MongoDB in Python
Instruções do exercício
- Save a filter
criteriathat finds laureates withprizes.motivationvalues containing "transistor" as a substring. The substring can appear anywhere within the value, so no anchoring characters are needed. - Save to
firstandlastthe field names corresponding to a laureate's first name and last name (i.e. "surname") so that we can print out the names of these laureates.
Exercício interativo prático
Experimente este exercício completando este código de exemplo.
from bson.regex import Regex
# Save a filter for laureates with prize motivation values containing "transistor" as a substring
criteria = {____: Regex(____)}
# Save the field names corresponding to a laureate's first name and last name
first, last = ____, ____
print([(laureate[first], laureate[last]) for laureate in db.laureates.find(criteria)])