I am attempting to write a stand alone python script which will loop through the first GDB and append each feature class to its corresponding feature class in the second GDB. The error code that I keep getting is:

"ExecuteError: Failed to execute. Parameters are not valid. ERROR 000338: Inputs must be either all Feature Classes, Tables or Rasters; not mixed. Failed to execute (Append)."

I believe this has to do with reading the pathways to the GDB. It is important to note that with in the second GDB the target feature class is within a feature dataset. My arc version is 10.2 if this matters.

import arcpy
import os
import traceback

#Set up workspace
outworkspace = "C:\\Users\\bjbart\\Desktop\\Marathon_Loading\\SURVEY_POINTS_V10_1.gdb"
workspace = "C:\\Users\\bjbart\\Desktop\\Marathon_Loading\\out.gdb"

arcpy.env.workspace = workspace

#loops through the first GDB 
featureclasses = arcpy.ListFeatureClasses()

for fc in featureclasses:

    shp_file = fc
    print fc

    if shp_file == "BEND":
        arcpy.Append_management(os.path.join(workspace, "shp_file"), "C:\\Users\\bjbart\\Desktop\\Marathon_Loading\\SURVEY_POINTS_V10_1.gdb\\PIPE_FEATURE\\BEND", "NO_TEST", "","")

        print('BEND File Has Been Appended To Target Database')

    else: print('Error shape file did not get read')'

For the script shown here as-is, I think the first error is located in the way we've passed our input dataset parameter to the arcpy.Append_management() tool. It appears that we are attempting to append a feature class called "shp_file" rather than passing the string variable called shp_file, which you have created a few lines above.

For this issue, maybe do the following? Please note the removal of quotes on shp_file:

if shp_file == "BEND":
        arcpy.Append_management(os.path.join(workspace, shp_file), "C:\\Users\\bjbart\\Desktop\\Marathon_Loading\\SURVEY_POINTS_V10_1.gdb\\PIPE_FEATURE\\BEND", "NO_TEST", "","")

Good luck here - after this first feature class is appended successfully you could create additional if conditions to append the remaining feature classes as needed.

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