Python Scrip for listing work space items erroring

[DevinWelty1]

I am trying to run a script to list items out in a work space and I've used this script before except now I am getting errors.

My experience with python is limited.... I did not create the script, so I have no clue what is happening.

This is the error I keep receiving.

Traceback (most recent call last):
File "Source\Path", line 42, in <module>
out = open(output, 'w')

Here's a screen shot of the script. Any Ideas why it isn't working now?

Thank you

[DanPatterson_Retired]

Lines numbers would help... this is how

/blogs/dan_patterson/2016/08/14/script-formatting 

[DevinWelty1]

Thank you for that! 

#!/usr/bin/env python
print('Running script')

print('Importing libraries')
import arcpy
import os

### enter paths here
source = r'E:' #r is necessary because of backslashes
output = 'E:\listdata2019.txt' #alternatively you can use double backslashes instead.
###

arcpy.env.workspace = source # the specific functions being used in this script require the environment to be set to input database.

### defines different functions for use in reading the workspace
#gets source features for copy
def listFeaturesInGDB():
    ''' set your arcpy.env.workspace to a gdb before calling '''
    for fds in arcpy.ListDatasets('','feature') + ['']:
        for fc in arcpy.ListFeatureClasses('','',fds):
            yield os.path.join(fds, fc)

#gets source tables for copy
def listTablesInGDB():
    ''' set your arcpy.env.workspace to a gdb before calling '''
    for tbl in arcpy.ListTables('',''):
        yield tbl

#gets source rasters for copy
def listRastersInGDB():
    ''' set your arcpy.env.workspace to a gdb before calling '''
    for rstr in arcpy.ListRasters('',''):
        yield rstr
        
print('Getting workspace items')
features = listFeaturesInGDB()
tables =  listTablesInGDB()
rasters = listRastersInGDB()

#writes output to file
print('Writing to output file' + '\n')
out = open(output, 'w')
out.write('###FEATURES###' + '\n')
for f in features:
    out.write(f + '\n') # the '\n' is a newline symbol
    print(f)
out.write('\n' + '###TABLES###' + '\n')
for t in tables:
    out.write(t + '\n')
    print(t)
out.write('\n' + '###RASTERS###' + '\n')
for r in rasters:
    out.write(r + '\n')
    print(r)

out.close()
print('\nScript finished')
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[JoeBorgione]

in addition to what Dan suggests, is your output file really defined as

'C:\\pathtooutput\\output.txt'‍

or are you just using it as an example?

[DevinWelty1]

I was just using that as the example, I'm trying to list data that is on an external drive (E:).

[DanPatterson_Retired]

could be it is failing on reading the root folder of the external drive... try throwing them into a folder on that drive

[LukeWebb]

That Error Message only tells us the line it occurs, you seem to have left of the actual Error from the message. 

[DevinWelty1]

I just ran it again to get the error and of course it worked.... . I do however want to list all of the data on the drive and not just what is within a .gdb...

So any suggestions how to edit this for that purpose?

[JoeBorgione]

Not to steal Lukes thunder, but drive/directory/folder are all considered workspaces, so you can change create a list of workspaces, step through it, and list whatever is within it.  I've done, so I'll see if I can find the code for you...

This should get you going

arcpy.env.workspace = r'I:\GIS\ArcSDE\SuperUser' #obviously my drive


dirList = []
for w in arcpy.ListWorkspaces():
    dirList.append(w)

for d in dirList:
    arcpy.env.workspace = d
    print('Current workspace is {}'.format(d))
    for w in arcpy.ListWorkspaces():
         if 'sde' in w or 'gdb' in w:
             arcpy.env.workspace = w
             print('  Current gdb is {}'.format(w) )
             for t in arcpy.ListTables():
                 print('   {}'.format(t))
            #list tables shown above
            #list feature classes
            #list rasters
            # if you use feature datasets, you'd need to create a list
            # a list of them change your workspace and list features
         else:
            pass‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

[DevinWelty1]

Thank you