Fix Email validator pip package recommendation

[joaoLouceiro]

The current documentation indicates that "pip install wtforms[email]" should be installed. Running that command returns a "no matches found: wtforms[email]"

Describe the issue you are attempting to fix.

Link to any relevant issues or pull requests.

Describe what this patch does to fix the issue.

[azmeuk]

It work pretty well for me. Maybe you forgot to put double quotes around wtforms[email] and the brackets are interpreted by your shell?

~/test
❯ virtualenv env
created virtual environment CPython3.13.2.final.0-64 in 112ms
  creator CPython3Posix(dest=/home/eloi/test/env, clear=False, no_vcs_ignore=False, global=False)
  seeder FromAppData(download=False, pip=bundle, via=copy, app_data_dir=/home/eloi/.local/share/virtualenv)
    added seed packages: pip==25.0.1
  activators BashActivator,CShellActivator,FishActivator,NushellActivator,PowerShellActivator,PythonActivator

~/test
❯ ./env/bin/pip install wtforms[email]
zsh: no matches found: wtforms[email]

~/test
❯ ./env/bin/pip install "wtforms[email]"
Collecting wtforms[email]
  Downloading wtforms-3.2.1-py3-none-any.whl.metadata (5.3 kB)
Collecting markupsafe (from wtforms[email])
  Using cached MarkupSafe-3.0.2-cp313-cp313-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (4.0 kB)
Collecting email-validator (from wtforms[email])
  Using cached email_validator-2.2.0-py3-none-any.whl.metadata (25 kB)
Collecting dnspython>=2.0.0 (from email-validator->wtforms[email])
  Using cached dnspython-2.7.0-py3-none-any.whl.metadata (5.8 kB)
Collecting idna>=2.0.0 (from email-validator->wtforms[email])
  Using cached idna-3.10-py3-none-any.whl.metadata (10 kB)
Using cached email_validator-2.2.0-py3-none-any.whl (33 kB)
Using cached MarkupSafe-3.0.2-cp313-cp313-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (23 kB)
Downloading wtforms-3.2.1-py3-none-any.whl (152 kB)
Using cached dnspython-2.7.0-py3-none-any.whl (313 kB)
Using cached idna-3.10-py3-none-any.whl (70 kB)
Installing collected packages: markupsafe, idna, dnspython, wtforms, email-validator
Successfully installed dnspython-2.7.0 email-validator-2.2.0 idna-3.10 markupsafe-3.0.2 wtforms-3.2.1

[joaoLouceiro]

You are totally right. No issues when running it with double quotes

Thanks!