handle exceptions such as:

• lost internet connection
• improper input given

use click.Group()

for example look at manage/cli.py#L6

http://click.pocoo.org/5/commands/

They're the main arguments, they shouldn't have flags.

If just --curr_to is given or just --curr_from, then whole other currencies should be listed nicely. Suggested by Suyog.

sounds like something I would use but I would rather install it from pypi
python3 -mpip install -U exch --user didn't work is it available there ?

cheers

Currently the default are set like this:

@click.option('--base', '-b', default='USD', type=str, show_default=True,
              help='Currency you are converting from.')
@click.option('--target', '-t', default='INR', type=str, show_default=True,
              help='Currency you\'re converting to.')

Where defaults are set to USD and INR.

User should be able to change this to his preference.

Add how to install test dependencies and working with tox and pytest.

Hi,

It's sometimes tough to guess the currency names, would it be possible to have a flag, for instance -l, to list currencies andtheir country ? it could be loaded from hardcoded json for offline support too.

Nb: I am currently packaging this for nixos.org

• Q. Why am I using isinstance() here:

    output = fixer(base, target, amount)
    if isinstance(output, float):
        output = "{} {} = {} {}".format(amount, base, output, target)

    click.echo(output)

• A. Because when the currency is invalid the operation is returning a string.

except KeyError:
        result = 1.00 if base == target else "KeyError: Invalid curreny"

    return result

• Add newline at the end of the JSON files that are being written. Such as here

• Look for a better way to handle Connection Error Exception.

• Refactor file_handling.py

Markdown doesn't get rendered on the PyPI website. https://pypi.org/project/exch/

I shouldn't make an API call every a command is fired. That will be abusing the
free API. Running something locally will always be faster than making online
requests. So I'll save the JSON. And have the --sync option to update the
rates.

• as it has more Currency standards
• have to parse HTML
• returns a 11kb html file

Date format should be ISO: 2019-07-01