_Reader.get_file_path
- _Reader.get_file_path(subregion_name, osm_file_format, data_dir=None)
Get the path to an OSM data file (if available) of a specific file format for a geographic (sub)region.
- Parameters:
subregion_name (str) – name of a geographic (sub)region (case-insensitive) that is available on a free download server
osm_file_format (str) – format (file extension) of OSM data
data_dir (str or None) – directory where the data file is located/saved, defaults to
None
; whendata_dir=None
, it refers to the directory specified by the corresponding downloader
- Returns:
path to the data file
- Return type:
str or None
Tests:
>>> from pydriosm.reader import _Reader >>> from pydriosm.downloader import GeofabrikDownloader, BBBikeDownloader >>> import os >>> r = _Reader(downloader=GeofabrikDownloader) >>> subrgn_name = 'rutland' >>> file_format = ".pbf" >>> dat_dir = "tests\osm_data" >>> path_to_rutland_pbf = r.get_file_path(subrgn_name, file_format, dat_dir) >>> os.path.relpath(path_to_rutland_pbf) 'tests\osm_data\rutland\rutland-latest.osm.pbf' >>> os.path.isfile(path_to_rutland_pbf) False >>> subrgn_name = 'leeds' >>> path_to_leeds_pbf = r.get_file_path(subrgn_name, file_format, dat_dir) >>> path_to_leeds_pbf is None True >>> # Change the `downloader` to `BBBikeDownloader` >>> r = _Reader(downloader=BBBikeDownloader) >>> path_to_leeds_pbf = r.get_file_path(subrgn_name, file_format, dat_dir) >>> os.path.relpath(path_to_leeds_pbf) 'tests\osm_data\leeds\Leeds.osm.pbf'