lookup.py

valid_depts = []

with open(DEPT_FILE_PATH, 'rb') as file:
  depts = list(load(file))

for dept in depts:
  if isinstance(dept, dict):
    for key, matches in dept.iteritems(): # only one of these
      valid_depts = valid_depts + [{match: key} for match in matches]
  else:
    valid_depts.append({dept: dept})

print valid_depts

valid_departments.yml

- Art Museum
- Atwater Kent Museum
- Auditing:
  - Auditing (City Controller)
- Aviation
- Board of Ethics
- Board of Revision of Taxes
- City Commissioners
- City Council
- City Planning Commission::
  - City Planning
  - City Planning Comm
- City Representative:
  - City Rep/Commerce
- City Treasurer
- Civil Service Commission
- Commerce
- Commerce - Convention Center Subsidy
- Commerce - Economic Stimulus
- District Attorney
- Finance
- Finance - Community College Subsidy
- Finance - Employee Benefits:
  - Finance - Emp. Benefits
- Finance - Hero Scholarship Awards
- Finance - Indemnities:
  - Finance - Indemnities (1)
- Finance - Provision for Other Grants:
  - Finance - Prov. For Other Grants
- Finance - Refunds
- Finance - School District Contribution
- Finance - Witness Fees
- Fire
- First Judicial District
- Fleet Management:
  - Mdo - Office of Fleet Mgmt.
- Free Library
- Historical Commission
- Human Relations Commission
- Human Services
- L&I  - Board of Building Standards:
  - L&I - Board of Building Standards
- L&I  - Board of L&I Review:
  - L&I - Board of L&I Review
- L&I  - Zoning Board of Adjustment:
  - L&I - Zoning Board of Adjustments
- Labor Relations
- Law
- Licenses and Inspections:
  - Licenses & Inspection
  - Licenses & Inspections
- Managing Director's Office:
  - Managing Director
- Mayor's Office
- Mayor's Office - Scholarships
- Mayor's Office of Community Services (now CEO):
  - M.O.C.S.
- Mayor's Office of Transportation & Utilities
- Mural Arts Program
- Office of Arts and Culture:
  - Office of Arts & Culture & the Creative Economy
- Office of Behavioral Health and Intellectual disAbilities:
  - Office of Behavioral Health and Intellectual disAbility
  - Office of Bh/Mr Services
- Office of Housing and Community Development:
  - Office of Housing:
  - Ohcd
- Office of Human Resources
- Office of Innovation and Technology:
  - Oit
- Office of Property Assessment
- Office of Supportive Housing:
  - O.S.H.
- Office of Sustainability:
  - Off of Sustainability
- Office of the Inspector General
- Parks and Recreation:
  - Parks & Recreation
- Police
- Prisons
- Procurement
- Public Health:
  - Health
- Public Property
- Public Property - SEPTA Subsidy
- Records
- Register of Wills
- Revenue
- Sheriff
- Sinking Fund Commission (Debt Service):
  - Sinking Fund
  - Sinking Fund Comm
- Streets
- Water
- Youth Commission