arcpy.Exists fails

[KennethKirkeby]

ArcGIS 10.3.1; Python 2.7.11

The file DOES exist but reporting that it does not. The syntax looks correct to my newbie eyes.

******************************************************************************************************************

import arcpy

arcpy.env.workspace = "C:\\Users\\kkirkeby\\Desktop\\GIS-4080\\Lesson4_Data\\Lesson4_Data"

#Variables

out_folder_path = 'C:\\Users\\kkirkeby\\Desktop\\GIS-4080\\Lesson4_Data\\Lesson4_Data'

gdb_name = 'L4E5'

gdb_fullPath = out_folder_path +'/' + gdb_name

fclist = arcpy.ListFeatureClasses()

fcIn = 0

fcOut = 0

# Create gdb if it doesn't exist.

if arcpy.Exists(gdb_fullPath):

    print "Geodatabase already exist"

else:

       print "Geodatabase does not exist. Creating..."

       print arcpy.Exists(gdb_fullPath)

       print gdb_fullPath

#    arcpy.CreateFileGDB_management(out_folder_path, gdb_name)

******************************************************************************************************************

Output:

================================ RESTART ================================

Geodatabase does not exist. Creating...

False

C:\Users\kkirkeby\Desktop\GIS-4080\Lesson4_Data\Lesson4_Data/L4E5

[DanPatterson_Retired]

can you try concatenating your file with "\\" instead of "/" the inconsistency in the final version may be confusing

not specific to gdb's but

Filenames and file paths in Python

example

>>> f = "file"
>>> path = r"c:\temp\text.gdb"
>>> full = path+ "\" + f
  File "<string>", line 1
    full = path+ "\" + f
                       ^
SyntaxError: EOL while scanning string literal
>>> full = path+ "\\" + f
>>> full
'c:\\temp\\text.gdb\\file'

>>> full
'c:\\temp\\text.gdb/file'
# works but may be confusing

[KennethKirkeby]

Same result.

[JamesCrandall]

You can try:

gdb_name = 'L4E5.gdb'
gdb_fullPath = out_folder_path +'\' + gdb_name

Although I typically would construct strings a bit differently using the 'r' literal:

out_folder_path = r'C:\Users\kkirkeby\Desktop\GIS-4080\Lesson4_Data\Lesson4_Data'
gdb_name = 'L4E5.gdb'
gdb_fullPath = out_folder_path +'\' + gdb_name

[KennethKirkeby]

Same result:

Also change

gdb_fullPath = out_folder_path +'\\' + gdb_name

print out_folder_path = C:\Users\kkirkeby\Desktop\GIS-4080\Lesson4_Data\Lesson4_Data

print gdb_name = l4_ex5

print gdb_fullPath = C:\Users\kkirkeby\Desktop\GIS-4080\Lesson4_Data\Lesson4_Data\l4_ex5

print arcpy.Exists(gdb_fullPath) = False

[JamesCrandall · Accepted solution]

This:

C:\Users\kkirkeby\Desktop\GIS-4080\Lesson4_Data\Lesson4_Data\l4_ex5

Is not a geodatabase/workspace.  You are missing the ".gdb" at the end.

C:\Users\kkirkeby\Desktop\GIS-4080\Lesson4_Data\Lesson4_Data\l4_ex5.gdb

[KennethKirkeby]

Well there's 4 hours I'll never get back ...

Thanks. Details, details, details.

[DanPatterson_Retired]

You will regain it in the future since you will not likely make that mistake again... Now if we could get people to quit using paths with spaces in them...

[KennethKirkeby]

I had read the link you listed before and thought I was good. I like your comment about using os.path instead.

Thanks for all your help to date.

Ken