cryptonate

Converts between currencies using the cryptonator.com API.

Usage:

$ cryptonate -h
usage: cryptonate [-h] [-v] X Y [N]

Converts an amount of currency X to Y using the current exchange rate from
cryptonator. If no value is given an amount of 1 X is used. If invoked as X2Y,
the currencies X and Y are inferred.

positional arguments:
  X              the currency to convert from
  Y              the currency to convert to
  N              the amount of X to convert to Y (default: 1)

optional arguments:
  -h, --help     show this help message and exit
  -v, --verbose  display verbose output

Examples:

(Assumes cryptonate is in your $PATH)

Invoking as `cryptonate`:

$ cryptonate DOGE GBP 50
0.006250

$ cryptonate -v DRK BTC
1 DRK = 0.00891338 BTC

Invoking as `X2Y`:

$ ln -s cryptonate btc2usd

(Assumes btc2usd and cryptonate are in your $PATH)

$ btc2usd -h
usage: btc2usd [-h] [-v] [N]

Converts an amount of currency BTC to USD using the current exchange rate from
cryptonator. If no value is given an amount of 1 BTC is used.

positional arguments:
  N              the amount of BTC to convert to USD (default: 1)

optional arguments:
  -h, --help     show this help message and exit
  -v, --verbose  display verbose output

$ btc2usd
586.68

$ btc2usd -v 0.25
0.25 BTC = 146.67 USD

$ btc2usd 0.00000001
0.000006

Known issues:

No error handling for connection issues (such as when cryptonator.com is down)
No option to access the full ticker for lots of extra information
No ability to know when BTC gets used as an intermediate currency (API limitation)

Notes:

This is my first time really using the argparse module. Comments, critiques, and patches are welcome.

epf/cryptonate