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125 changes: 82 additions & 43 deletions README.md
Original file line number Diff line number Diff line change
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# eiapy
[![PyPI](https://img.shields.io/pypi/v/eiapy.svg)](https://pypi.org/project/eiapy/) [![PyPI - License](https://img.shields.io/pypi/l/eiapy.svg)](https://pypi.org/project/eiapy/) [![PyPI - Python Version](https://img.shields.io/pypi/pyversions/eiapy.svg)](https://pypi.org/project/eiapy/)
# U.S. Energy Information Administration Python API Wrapper

Python 3 wrapper for the U.S. Energy Information Administration API.
[![PyPI](https://img.shields.io/pypi/v/eiapy.svg)](https://pypi.org/project/eiapy/) [![PyPI - License](https://img.shields.io/pypi/l/eiapy.svg)](https://pypi.org/project/eiapy/) [![PyPI - Python Version](https://img.shields.io/pypi/pyversions/eiapy.svg)](https://pypi.org/project/eiapy/)

Python 3 wrapper for the U.S. Energy Information Administration API.

## Quick start

### Quick start
```bash
pip install eiapy
```

Get the last 5 measurements of the electricity flow between California and Mexico.

```python3
>>> from eiapy import Series
>>> cal_to_mex = Series('EBA.CISO-CFE.ID.H')
>>> cal_to_mex.last(5)
{'request': {'command': 'series', 'series_id': 'EBA.CISO-CFE.ID.H'},
'series': [{'data': [['20180401T07Z', -11],
['20180401T06Z', -16],
['20180401T05Z', -11],
['20180401T04Z', -7],
['20180401T03Z', -5]],
'description': 'Timestamps follow the ISO8601 standard '
'(https://en.wikipedia.org/wiki/ISO_8601). Hourly '
'representations are provided in Universal Time.',
'end': '20180401T07Z',
'f': 'H',
'name': 'Actual Net Interchange for California Independent System '
'Operator (CISO) to Comision Federal de Electricidad '
'(CFE), Hourly',
'series_id': 'EBA.CISO-CFE.ID.H',
'start': '20150701T00Z',
'units': 'megawatthours',
'updated': '2018-04-02T08:43:16-0400'}]}

```python
from eiapy import Series

# Call the Series.
cal_to_mex = Series("EBA.CISO-CFE.ID.H")

# Grab the Last 5 Data Points.
cal_to_mex.last(5)

{
"request": {
"command": "series",
"series_id": "EBA.CISO-CFE.ID.H"
},
"series": [
{
"data": [
["20180401T07Z", -11],
["20180401T06Z", -16],
["20180401T05Z", -11],
["20180401T04Z", -7],
["20180401T03Z", -5]
],
"description": "Timestamps follow the ISO8601 standard (https://en.wikipedia.org/wiki/ISO_8601). Hourly representations are provided in Universal Time.",
"end": "20180401T07Z",
"f": "H",
"name": "Actual Net Interchange for California Independent System Operator (CISO) to Comision Federal de Electricidad (CFE), Hourly",
"series_id": "EBA.CISO-CFE.ID.H",
"start": "20150701T00Z",
"units": "megawatthours",
"updated": "2018-04-02T08:43:16-0400"
}
]
}
```

Further examples can be found [in this gist](https://gist.github.com/systemcatch/019cf50302093b9b51838c62b99623df).

To find more details about the API go to the EIA's [Open Data](https://www.eia.gov/opendata/) page. To find interesting data (and identifiers) [browse the data sets](https://www.eia.gov/opendata/qb.php).
To find more details about the API go to the EIA"s
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Is it meant to be a " here?

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Hey @areed1192 can you confirm either way on this? Once it's done I'll merge.

[Open Data](https://www.eia.gov/opendata/) page. To find interesting data
(and identifiers) [browse the data sets](https://www.eia.gov/opendata/qb.php).

For specific information about the [real-time grid display](https://www.eia.gov/beta/electricity/gridmonitor/dashboard/electric_overview/US48/US48) please see [this guide](https://www.eia.gov/realtime_grid/docs/userguide-knownissues.pdf).
For specific information about the [real-time grid display](https://www.eia.gov/beta/electricity/gridmonitor/dashboard/electric_overview/US48/US48)
please see [this guide](https://www.eia.gov/realtime_grid/docs/userguide-knownissues.pdf).

Go [here](https://www.eia.gov/opendata/register.cfm#terms_of_service) to see the
API terms of service and [here](https://www.eia.gov/about/copyrights_reuse.cfm)
for an explanation of copyright and reuse of their data.

### Setting up your API key
An API key is needed to access the EIA's data, you can get one [here](https://www.eia.gov/opendata/register.php). eiapy needs this key to be manually set in the operating system environmental variables.
## Setting up your API key

An API key is needed to access the EIA"s data, you can get one [here](https://www.eia.gov/opendata/register.php).
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Same question.

`eiapy` needs this key to be manually set in the operating system environmental variables.

**Mac & Linux**
Open a terminal and enter the following;

```bash
export EIA_KEY=type_your_api_key_here
```

To set it permanently follow the instructions on this [stackexchange question](https://unix.stackexchange.com/questions/117467/how-to-permanently-set-environmental-variables).

**Windows**
Open a Command Prompt and enter the following;

```bat
setx EIA_KEY "type_your_api_key_within_the_quotes"
```

### Notes on API behaviour
## Notes on API behaviour

- When providing invalid time limits for a series data request an empty data list is returned.
- For data requests num & start cannot be used together but num & end can.
- When an invalid series id is passed this is the response.
```python3
{'request': {'series_id': 'eba.ciso-cfe.id.', 'command': 'series', 'num': '5'},
'data': {'error': 'invalid series_id. For key registration, documentation, and
examples see https://www.eia.gov/developer/'}}

```jsonc
{
"request": {
"series_id": "eba.ciso-cfe.id.",
"command": "series",
"num": "5"
},
"data": {
"error": "invalid series_id. For key registration, documentation, and examples see https://www.eia.gov/developer/"
}
}
```
- The API expects timestamps in ISO 8601 format (YYYYMMDDTHHZ) with Z meaning UTC, [bad timestamps](https://github.com/systemcatch/eiapy/issues/16) will not raise errors.

### Changelog
**0.1.5**
- The API expects timestamps in ISO 8601 format (YYYYMMDDTHHZ) with Z meaning
UTC, [bad timestamps](https://github.com/systemcatch/eiapy/issues/16) will not
raise errors.

## Changelog

**0.1.5:**

- Added Python 3.8 to supported versions.
- Updated readme with advice about bad timestamps.
- Disabled broken Relation class.
- Made handling of no api key more human friendly.

**0.1.4**
**0.1.4:**

- Fixed broken Search `repr`.
- Added Python 3.7 to supported versions.
- Mention real-time grid in readme.

**0.1.3**
**0.1.3:**

- Simplify construction and use of the Search class.
- Explain how to set up the API key.
- Added gist of examples to readme.

**0.1.2**
**0.1.2:**

- Rename several methods for extra clarity.
- data -> get_data
- get -> get_updates

**0.1.1**
**0.1.1:**

- Started using requests session functionality to improve performance.
- Fixed a mistake in the MultiSeries class that stopped it working entirely.
- Added a version attribute to the package.
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