Invalid Syntax Error Assistance

RemyCrettol — Fri, 09 May 2025 15:34:11 GMT

Hey all, I am trying to use ArcGIS and Python code to prioritize and map river corridor protections for flood resilience. I am struggling with this line of code that is giving me a SyntaxError: invalid syntax. I think it is trying to read 'Mulitple' as part of the code and not as a word/value. See line 4 error below as well as full code under that. Really been struggling to resolve this so any assistance would be much appreciated.

File "<string>", line 4
if (Upstream_MassFailures == 'multiple' and upstream_constrained = 1):
^
SyntaxError: invalid syntax
.

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def calculate_sediment_loaded(confinement_type, ChannelEvolutionStage, GeomorphicStreamCondition, GeoAssessSensitivity, Upstream_MassFailures, constrained, upstream_constrained😞

# Check if the reach is downstream of a constrained reach with mass failures and conditions are met

if (Upstream_MassFailures == 'Multiple' and upstream_constrained = 1):

# Count how many primary criteria are met

criteria_met = sum([

confinement_type in ('BD', 'VB'),

ChannelEvolutionStage in ('III', 'IV'),

GeoAssessSensitivity in ('Very High', 'Extreme'),

GeomorphicStreamCondition in ('Fair', 'Poor')

])

# If at least 3 out of 4 conditions are met, return 1

if criteria_met >= 3:

return 1

elif (upstream_percent_straightened > 40 and straightening_percent is not None and straightening_percent <= 40):

return 1

elif (Constrained is not None and constrained = 0 and upstream_constrained = 1):

return 1

return 0 # Default case if conditions aren't met

Re: Invalid Syntax Error Assistance

DanPatterson — Fri, 09 May 2025 15:45:06 GMT

if (Upstream_MassFailures == 'multiple') and (upstream_constrained == 1):

you forgot the last = hence it errored. I put in a couple of extra enclosing ( )'s for good measure

Re: Invalid Syntax Error Assistance

RemyCrettol — Fri, 09 May 2025 15:48:05 GMT

You are my hero, thank you so much!

Re: Invalid Syntax Error Assistance

KenBuja — Fri, 09 May 2025 15:51:47 GMT

Don't forget to make the same change in the last elif

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