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Make dnspython package is optional #114

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Make dnspython package is optional #114

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6 changes: 6 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,12 @@ This package [is on PyPI](https://pypi.org/project/email-validator/), so:
pip install email-validator
```

If deliverability option will be used:

```sh
pip install email-validator[dns]
```

(You might need to use `pip3` depending on your local environment.)

Quick Start
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7 changes: 5 additions & 2 deletions email_validator/deliverability.py
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Expand Up @@ -2,8 +2,11 @@

from .exceptions_types import EmailUndeliverableError

import dns.resolver
import dns.exception
try:
import dns.resolver
import dns.exception
except ImportError as e:
raise ImportError('deliverability option requires dnspython, run `pip install email-validator[dns]`') from e


def caching_resolver(*, timeout: Optional[int] = None, cache=None):
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5 changes: 4 additions & 1 deletion setup.cfg
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Expand Up @@ -25,10 +25,13 @@ keywords = email address validator
[options]
packages = find:
install_requires =
dnspython>=2.0.0 # optional if deliverability check isn't needed
idna>=2.0.0
python_requires = >=3.7

[options.extras_require]
# optional if deliverability check isn't needed
dns = dnspython>=2.0.0

[options.package_data]
* = py.typed

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