opencellid 1.2

A python wrapper for the OpenCellID DB

----------------
OpenCellID Utils
----------------

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This project is not associated with the OpenCellID project. This is a utility
package for downloading and parsing the OpenCellID database.


Usage (with API key from Unwired Labs)
--------------------------------------

::

import opencellid
ocid_obj = opencellid.OpenCellIdFeed("/dir/for/feed/file/", "api_key")
# Update OpenCellID feed from web:
ocid_obj.update_feed()
# Print all rows in OpenCellID feed:
for row in ocid_obj:
print row


Usage (no API key, update from Mozilla Location Services)
---------------------------------------------------------

::

import opencellid
ocid_obj = opencellid.OpenCellIdFeed("/dir/for/feed/file/")
# Update OpenCellID feed from web:
ocid_obj.update_feed()
# Print all rows in OpenCellID feed:
for row in ocid_obj:
print row


Error Handling
--------------

The tool will attempt to detect if the download is a gzipped CSV file before
boving the download to replace the original gzipped CSV. If an IOError is
encountered, a meaningful message will be displayed, and the exception will
be re-raised. For example, if you're being rate-limited, you'll see...

::

>>> ocid_obj.update_feed()
Updating OpenCellID feed from Unwired Labs.
Feed did not update... you're being rate-limited!
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "opencellid/opencellid_feed.py", line 60, in update_feed
consumer.next()
File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/csv.py", line 107, in next
self.fieldnames
File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/csv.py", line 90, in fieldnames
self._fieldnames = self.reader.next()
File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/gzip.py", line 464, in readline
c = self.read(readsize)
File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/gzip.py", line 268, in read
self._read(readsize)
File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/gzip.py", line 303, in _read
self._read_gzip_header()
File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/gzip.py", line 197, in _read_gzip_header
raise IOError, 'Not a gzipped file'
IOError: Not a gzipped file


And if your API key is not accepted, you'll see...

::

>>> ocid_obj.update_feed()
Updating OpenCellID feed from Unwired Labs.
API token rejected by Unwired Labs!!
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "opencellid/opencellid_feed.py", line 60, in update_feed
consumer.next()
File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/csv.py", line 107, in next
self.fieldnames
File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/csv.py", line 90, in fieldnames
self._fieldnames = self.reader.next()
File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/gzip.py", line 464, in readline
c = self.read(readsize)
File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/gzip.py", line 268, in read
self._read(readsize)
File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/gzip.py", line 303, in _read
self._read_gzip_header()
File "/usr/local/Cellar/python/2.7.13/Frameworks/Python.framework/Versions/2.7/lib/python2.7/gzip.py", line 197, in _read_gzip_header
raise IOError, 'Not a gzipped file'
IOError: Not a gzipped file


When this happens, the original feed is not updated, so you can catch and
re-initialize the ``ocid_obj`` to pull from MLS until you can sort out the
rate limiting or API key issue.


Installation
------------

pip install opencellid

Testing
-------

py.test

The test fixture file cell_towers.csv.gz contains information from the
OpenCellID database, which is licensed CC-BY-SA 3.0

Changelog
=========

v1.0
----

Changes
~~~~~~~

- Support update from UnwiredLabs or Mozilla Location Services. API
changed, now use update_feed() method and source will be chosen
depending on the presence of an API key. [Ash Wilson]

v0.1.1 (2017-01-23)
-------------------

New
~~~

- Unit and integration tests. [Ash Wilson]

- Creates an OpenCellIdFeed object which can be updated from web and
iterated over. [Ash Wilson]