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My goal is to print names of feature classes and corresponding minimum latitude of centroids of geometry for all shapefiles in a folder. In total I have 5 shapefiles and I'm trying to loop through them.

import arcpy
arcpy.env.overwriteOutput = True

arcpy.env.workspace = r"C:\Users\username\dataset_folder"

for z in arcpy.ListFeatureClasses():
    print(z)

I am able to print the names of these shapefiles but don't know how to get minimum latitude of centroids of geometry.

What ArcPy tool should I use to get these minimum latitude of centroids of geometries?

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  • 1
    Or just SHAPE@Y to make it simpler (a double, instead of a tuple). Nov 3, 2021 at 3:15

1 Answer 1

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This might work (untested):

arcpy.env.workspace = r"C:\Users\username\dataset_folder"

for fc in arcpy.ListFeatureClasses():
    minLatitude = min(arcpy.da.SearchCursor(fc, "SHAPE@Y"))
    print("{}: {}".format(fc, minLatitude))

(Updated to include PaulH's suggested modification/simplification.)

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  • That worked! I was trying to wrap my for loop under SearchCursor instead of the other way around! Thanks a lot for your time!
    – puredata
    Nov 3, 2021 at 3:23
  • 3
    would min(arcpy.da.SearchCursor(fc, "SHAPE@Y")) work? (I don't have access to arcpy at the moment?
    – Paul H
    Nov 3, 2021 at 3:37
  • min(arcpy.da.SearchCursor(fc, "SHAPE@Y")) worked too! A follow up question, I keep seeing similar syntax to "y for y in" what would be a good search term to understand this kind of for loops? I haven't really encountered them before until a week ago.
    – puredata
    Nov 3, 2021 at 4:28
  • 1
    It's Python's "list comprehension" syntax. See: w3schools.com/python/python_lists_comprehension.asp . It's a great shorthand for some for loops, and optionally for loops with if conditions and other variations. Nov 3, 2021 at 4:30
  • @PaulH - thanks... I've updated the answer to use your suggested improvement. Makes sense! Nov 3, 2021 at 4:33

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