ArcPy - Python script and list of features in FGDB

DudleyHartel

I'm trying to run a Python script to merge all polygon features in a single file geodatabase but my ListFeatureClasses function doesn't appear to be returning any FC names!

See attached with screen shots and code

import arcpy

import os

 

# This will be the list of polygon features to merge

listFC = []

 

# Set the workspace to state CoreLogic FGDB

arcpy.env.workspace = r"L:\SRS_Heirs_29Mar19\20190310_R8_HeirsProperty_AL_CoreLogicParcelsMods_SRS4952.gdb"

 

# Set output FGDB

outputFGDB = r"D:\Documents\ArcGIS\Projects\SRS4952_Heirs\SRS4952_Heirs.gdb"

 

# Set output FGDB and new merged FC

mergedFC = os.path.join(outputFGDB, "CL_AL_ParcelsArea")

 

# Get list of polygon feature classes in FGDB

listFC = arcpy.ListFeatureClasses(feature_type='Polygon')

 

# Now merge

print ("Starting merge now...")

arcpy.Merge_management(inputs=listFC, output=mergedFC)

 

print("Finished polygon merge...")

ListFeatureClasses is not returning any polygon feature classes (there are about 100 in the FGDB)

All polygon features have the same data schema

I have a FGDB with point and polygon features as illustrated below.pdf

curtvprice

As Dan is desrcribing, ListFeatureClasses will only give you a list from the current workspace. If the structure is only one deep you can replace this:

<SPAN class="comment token"># Get list of polygon feature classes in FGDB</SPAN>
listFC <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>ListFeatureClasses<SPAN class="punctuation token">(</SPAN>feature_type<SPAN class="operator token">=</SPAN><SPAN class="string token">'Polygon'</SPAN><SPAN class="punctuation token">)</SPAN>‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

with this

<SPAN class="keyword token">from</SPAN> arcpy <SPAN class="keyword token">import</SPAN> env
<SPAN class="comment token"># Get list of polygon feature classes in FGDB</SPAN>
wk <SPAN class="operator token">=</SPAN> env<SPAN class="punctuation token">.</SPAN>workspace
fds <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>ListDatasets<SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN>
listFC <SPAN class="operator token">=</SPAN> <SPAN class="punctuation token">[</SPAN><SPAN class="punctuation token">]</SPAN>
<SPAN class="keyword token">for</SPAN> fd <SPAN class="keyword token">in</SPAN> fds<SPAN class="punctuation token">:</SPAN>
    env<SPAN class="punctuation token">.</SPAN>workspace <SPAN class="operator token">=</SPAN> os<SPAN class="punctuation token">.</SPAN>path<SPAN class="punctuation token">.</SPAN>join<SPAN class="punctuation token">(</SPAN>wk<SPAN class="punctuation token">,</SPAN> fd<SPAN class="punctuation token">)</SPAN>
    fcs <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>ListFeatureClasses<SPAN class="punctuation token">(</SPAN>feature_type<SPAN class="operator token">=</SPAN><SPAN class="string token">'Polygon'</SPAN><SPAN class="punctuation token">)</SPAN>
    listFC <SPAN class="operator token">+=</SPAN> fcs
env<SPAN class="punctuation token">.</SPAN>workspace <SPAN class="operator token">=</SPAN> wk‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>