Reverse GeoLocate for XMP Sidecar files

Reverse GeoLocate from XMP sidecar files with optional LightRoom DB read

This script will update any of the Country Code, Country, State, City and Location data that is missing in sidecard files. If a Lightroom DB is set, it will read any data from the database and fill in the fields before it tries to get the location name from google with the Latitude and Longitude found in either the XMP sidecar file or the LR database.

Installing and setting up

The script uses the following external non defauly python libraries

• xmp toolkit
• requests

install both with the pip3 command

pip3 install requests
pip3 install python-xmp-toolkit

XMP Toolkit also needs the Exempi Library. This one can be install via brew or macports directly. See more information for Python XMP Tool kit

The scripts python3 enviroment path (#!...) needs to be set so it points to a valid python3 install.

Command line arguments

reverse_geolocate.py [-h] -x [XMP SOURCE FOLDER [XMP SOURCE FOLDER ...]] [-l LIGHTROOM FOLDER] [-s] [-f <overwrite, location, city, state, country, countrycode>] [-g GOOGLE API KEY] [-o] [-e EMIL ADDRESS] [-n] [-v] [--debug] [--test]

Arguments

Argument	Argument Value	Description
-x, --xmp	XMP sidecar source folder or XMP sidecar file itself	Must given argument. It sets the path where the script will search for XMP sidecar files. It will traverse into subdirectories. A single XMP sidecar file can also be given. If the same file folder combination is found only one is processed.
-l, --lightroom	Lightroom DB base folder	The folder where the .lrcat file is located. Optional, if this is set, LR values are read before any Google maps connection is done. Fills the Latitude and Longitude and the location names. Lightroom data never overwrites data already set in the XMP sidecar file. It is recommended to have Lightroom write the XMP sidecar file before this script is run
-s, --strict		Do strict check for Lightroom files and include the path into the check
-f, --field	Keyword: overwrite, location, city, state, country, countrycode	In the default no data is overwritten if it is already set. With the 'overwrite' flag all data is set new from the Google Maps location data. Other arguments are each of the location fields and if set only this field will be set. This can be combined with the 'overwrite' flag to overwrite already set data
-n, --nobackup		Do not create a backup of XMP sidecar file when it is changed
-o, --openstreetmap		Use OpenStreetMap instead of the default google maps
-e, --email	email address	For OpenStreetMap with a large number of access
-g, --google	Google Maps API Key	If available, to avoid the access limitations to the reverse location lookup
-v, --verbose		More verbose output. Currently not used
--debug		Full detailed debug output. Will print out alot of data
--test		Does not write any changed back to the XMP sidecar file. For testing purposes

The script will created a backup of the current sidecar file named .BK.xmp in the same location as the original file.

If the Lightroom lookup is used without the --strict argument and several files with the same name are found, they will be skipped for usage.

Example

reverse_geolocate.py -x Photos/2017/01 -x Photos/2017/02 -l LightRoom/MyCatalogue -f overwrite -g <API KEY>

Will find all XMP sidecar files in both folders Photos/2017/01 and Photos/2017/02 and all folder below it. Uses the Lightroom database at LightRoom/MyCatalogue. The script will overwrite all data, even if it is already set

reverse_geolocate.py -x Photos/2017/01/Event-01/some_photo.xmp -f location

Only works on some_photo.xmp file and will only set the location field if it is not yet set.

Google data priority

Based in the JSON return data the following fields are set in order. If one can not be found for a target set, the next one below is used

order	type	target set
1	country	Country, CountryCode
2	administrative_area_level_1	State
3	administrative_area_level_2	State
4	locality	City
5	sublocality_level_1	Location
6	sublocality_level_2	Location
7	route	Location

OpenStreetMap data priority

order	type	target set
1	country_code	CountryCode
2	country	Country
3	state	State
4	city	City
5	city_district	City
6	state_district	City
7	county	Location
8	town	Location
9	suburb	Location
10	hamlet	Location
11	neighbourhood	Location
12	raod	Location

Script stats and errors on update

After the script is done the following overview will be printed

==============================
Found XMP Files       : 3
Updated               : 0
Skipped               : 2
New GeoLocation Google: 0
GeoLocation from Cache: 0
Failed for Reverse Geo: 1
GeoLoc from Lightroom : 0
No Lightroom data     : 0

If there are problems with getting data from the Google Maps API the complete errior sting will be printed

...
---> Photos/2017/02/some_file.xmp: Error in request: OVER_QUERY_LIMIT You have exceeded your daily request quota for this API. We recommend registering for a key at the Google Developers Console: https://console.developers.google.com/apis/credentials?project=_
(!) Could not geo loaction data [FAILED]
...

Also the files that could not be updated will be printed at the end of the run under the stats list

...
------------------------------
Files that failed to update:
Photos/2017/02/some_file.xmp

Tested OS

This script has only been tested on macOS