This should make Python updates easier.

MAINT use variables for Python version rather than hardcoding it. This should make Python updates easier.

package:
  name: pydantic
  version: 1.9.0
source:
  sha256: 742645059757a56ecd886faf4ed2441b9c0cd406079c2b4bee51bcc3fbcd510a
  url: https://files.pythonhosted.org/packages/60/a3/23a8a9378ff06853bda6527a39fe317b088d760adf41cf70fc0f6110e485/pydantic-1.9.0.tar.gz
test:
  imports:
    - pydantic
requirements:
  run:
    - typing-extensions

package:
  name: pydantic
  version: 1.9.0
source:
  sha256: 742645059757a56ecd886faf4ed2441b9c0cd406079c2b4bee51bcc3fbcd510a
  url: https://files.pythonhosted.org/packages/60/a3/23a8a9378ff06853bda6527a39fe317b088d760adf41cf70fc0f6110e485/pydantic-1.9.0.tar.gz
test:
  imports:
    - pydantic
requirements:
  run:
    - typing-extensions
