A simple python package to generate HTML head tags.

Project description

pyhead 🐍🤯

Downloads black

The Python HTML <head> filler.

pip install pyhead

pyhead 🐍🤯

What is Pyhead?

Pyhead is a Python package that helps you generate the <head> tag for your HTML pages.

Flask example:

from flask import Flask, render_template

from pyhead import Head


def create_app():
    app = Flask(__name__)

    @app.route("/")
    def index():
        head = Head(
            base="https://example.com",
            title="Hello World",
            exclude_title_tags=True,
            # /\ Set to False if returning {{ head() }} in the template
            description="This is a test",
            keywords="test, hello, world",
            subject="Hello World",
            rating="General",
            robots="index, follow",
        )
        head.set_default_content_security_policy()
        head.set_referrer_policy(
            policy="no-referrer",
        )
        head.set_google(
            googlebot="index, follow",
            no_sitelinks_search_box=True,
            no_translate=True,
        )
        head.set_verification(
            google="1234567890",
            yandex="1234567890",
            bing="1234567890",
            alexa="1234567890",
            pinterest="1234567890",
            norton="1234567890",
        )
        head.set_geo_position(
            icbm="55.86013028402754, -4.252019430273945",
            geo_position="55.86013028402754;-4.252019430273945",
            geo_region="en_GB",
            geo_placename="Duke of Wellington",
        )
        head.set_twitter_card(
            card="summary",
            site_account="@example",
            creator_account="@example",
            title="Example",
            description="Example",
            image="https://example.com/image.png",
            image_alt="Example",
        )
        head.set_opengraph_website(
            site_name="Example",
            title="Example",
            description="Example",
            url="https://example.com",
            image="https://example.com/image.png",
            image_alt="Example",
            locale="en_US",
        )
        head.set_favicon(
            ico_icon_href="/favicon.ico",
            png_icon_16_href="/favicon-16x16.png",
            png_icon_32_href="/favicon-32x32.png",
            png_icon_64_href="/favicon-64x64.png",
            png_icon_96_href="/favicon-96x96.png",
            png_icon_180_href="/favicon-180x180.png",
            png_icon_196_href="/favicon-196x196.png",
            png_apple_touch_icon_57_href="/apple-touch-icon-57x57.png",
            png_apple_touch_icon_60_href="/apple-touch-icon-60x60.png",
            png_apple_touch_icon_72_href="/apple-touch-icon-72x72.png",
            png_apple_touch_icon_76_href="/apple-touch-icon-76x76.png",
            png_apple_touch_icon_114_href="/apple-touch-icon-114x114.png",
            png_apple_touch_icon_120_href="/apple-touch-icon-120x120.png",
            png_apple_touch_icon_144_href="/apple-touch-icon-144x144.png",
            png_apple_touch_icon_152_href="/apple-touch-icon-152x152.png",
            png_apple_touch_icon_167_href="/apple-touch-icon-167x167.png",
            png_apple_touch_icon_180_href="/apple-touch-icon-180x180.png",
            png_mstile_70_href="/mstile-70x70.png",
            png_mstile_270_href="/mstile-270x270.png",
            png_mstile_310x150_href="/mstile-310x150.png",
            png_mstile_310_href="/mstile-310x150.png",
        )

        head.set_link_tag("canonical", "https://example.com")

        return render_template("index.html", head=head)

    return app

index.html:

<html lang="en">
<head>
    {{ head.top_level_tags }}
    <title>{{ head.title }}</title>
    {{ head.meta_tags }}
    {{ head.link_tags }}
</head>
<body>
<h1>Flask App</h1>
<p>Right-Click view source</p>
</body>
</html>

<html lang="en">
<head>
    {{ head() }}
    <!-- 
    REMEMBER to remove (or set to False) the `exclude_title_tags=True`, 
    from the Head() constructor.
    -->
</head>
<body>
<h1>Flask App</h1>
<p>Right-Click view source</p>
</body>
</html>

Results in:

<html lang="en">
<head>
    <!-- Top Level Tags - charset and viewport are set by default -->
    <meta charset="utf-8">
    <meta name="viewport" content="'width=device-width, initial-scale=1.0'">
    <base href="https://example.com">
    <!-- Title Tag -->
    <title>Hello World</title>
    <!-- Meta Tags -->
    <meta name="description" content="This is a test">
    <meta name="keywords" content="test, hello, world">
    <meta name="subject" content="Hello World">
    <meta name="rating" content="General">
    <meta name="robots" content="index, follow">
    <meta name="referrer" content="origin, no-referrer">
    <meta name="googlebot" content="index, follow">
    <meta name="google" content="notranslate">
    <meta name="google-site-verification" content="1234567890">
    <meta name="yandex-verification" content="1234567890">
    <meta name="msvalidate.01" content="1234567890">
    <meta name="alexaVerifyID" content="1234567890">
    <meta name="p:domain_verify" content="1234567890">
    <meta name="norton-safeweb-site-verification" content="1234567890">
    <meta name="og:type" content="website">
    <meta name="og:locale" content="en_US">
    <meta name="og:site_name" content="Example">
    <meta name="og:title" content="Example">
    <meta name="og:description" content="Example">
    <meta name="og:image" content="https://example.com/image.png">
    <meta name="og:image:alt" content="Example">
    <meta name="og:url" content="https://example.com">
    <meta name="twitter:card" content="summary">
    <meta name="twitter:site" content="@example">
    <meta name="twitter:creator" content="@example">
    <meta name="twitter:title" content="Example">
    <meta name="twitter:description" content="Example">
    <meta name="twitter:image" content="https://example.com/image.png">
    <meta name="twitter:image:alt" content="Example">
    <meta name="ICBM" content="55.86013028402754, -4.252019430273945">
    <meta name="geo.position" content="55.86013028402754;-4.252019430273945">
    <meta name="geo.region" content="en_GB">
    <meta name="geo.placename" content="Duke of Wellington">
    <!-- Link Tags -->
    <link rel="icon" href="/favicon.ico" sizes="16x16 32x32" type="image/x-icon">
    <link rel="icon" href="/favicon-16x16.png" sizes="16x16" type="image/png">
    <link rel="icon" href="/favicon-32x32.png" sizes="32x32" type="image/png">
    <link rel="icon" href="/favicon-64x64.png" sizes="64x64" type="image/png">
    <link rel="icon" href="/favicon-96x96.png" sizes="96x96" type="image/png">
    <link rel="icon" href="/favicon-180x180.png" sizes="180x180" type="image/png">
    <link rel="icon" href="/favicon-196x196.png" sizes="196x196" type="image/png">
    <link rel="apple-touch-icon" href="/apple-touch-icon-57x57.png" sizes="57x57" type="image/png">
    <link rel="apple-touch-icon" href="/apple-touch-icon-60x60.png" sizes="60x60" type="image/png">
    <link rel="apple-touch-icon" href="/apple-touch-icon-72x72.png" sizes="72x72" type="image/png">
    <link rel="apple-touch-icon" href="/apple-touch-icon-76x76.png" sizes="76x76" type="image/png">
    <link rel="apple-touch-icon" href="/apple-touch-icon-114x114.png" sizes="114x114" type="image/png">
    <link rel="apple-touch-icon" href="/apple-touch-icon-120x120.png" sizes="120x120" type="image/png">
    <link rel="apple-touch-icon" href="/apple-touch-icon-144x144.png" sizes="144x144" type="image/png">
    <link rel="apple-touch-icon" href="/apple-touch-icon-152x152.png" sizes="152x152" type="image/png">
    <link rel="apple-touch-icon" href="/apple-touch-icon-167x167.png" sizes="167x167" type="image/png">
    <link rel="apple-touch-icon" href="/apple-touch-icon-180x180.png" sizes="180x180" type="image/png">
    <link rel="msapplication-square70x70logo" href="/mstile-70x70.png">
    <link rel="msapplication-square270x270logo" href="/mstile-270x270.png">
    <link rel="msapplication-wide310x150logo" href="/mstile-310x150.png">
    <link rel="msapplication-wide310x150logo" href="/mstile-310x150.png">
    <link rel="canonical" href="https://example.com">
</head>
<body>
<h1>Flask App</h1>
<p>Right-Click view source</p>
</body>
</html>

Advanced use cases:

Flask + g

You can use the g object in Flask to store the head object.

from flask import Flask, render_template, g

from pyhead import Head


def create_app():
    app = Flask(__name__)

    @app.before_request
    def inject_pyhead():
        g.head = Head()
        g.head.set_title("My Cool Site")

    @app.route("/")
    def index():
        render_template("index.html")

index.html

<!DOCTYPE html>

<html lang="en">
<head>
    {{ g.head.append_title("Home Page", " - ", _from_template=True) }}
    {{ g.head() }}
</head>
<body>
{% block content %}

{% endblock %}
</body>
</html>

Results in:

...
<head>

    <meta charset="utf-8">
    <meta name="viewport" content="'width=device-width, initial-scale=1.0'">
    <title>My Cool Site - Home Page</title>

</head>

...

Working with extended templates

The head object can be modified in templates that extend other templates. Here's an example:

extends.html

<!DOCTYPE html>

<html lang="en">
<head>
    {%- block head -%}
    {{ g.head() }}
    {% endblock %}
</head>
<body>
{% block content %}

{% endblock %}
</body>
</html>

index.hml

{% extends "extends.html" %}

{% block head %}
{{ g.head.append_title('Flask App', ' - ', _from_template=True) }}
{{ super() }}
{% endblock %}

{% block content %}
<h1>Flask App</h1>
<p>Right-Click view source</p>
{% endblock %}

In this example the <link rel="canonical" href="https://example.com"> tag is removed, and the title is appended, resulting in:

...
<head>

<meta charset="utf-8">
<meta name="viewport" content="'width=device-width, initial-scale=1.0'">
<base href="https://example.com">
<title>My Cool Site - Flask App</title>

</head>
...

dict as args, and JSON

You can pass a dict to the Head() constructor to set the values of the tags. The keys must match the arguments of the set method.

head = Head(
    ...,
    twitter_card={
        "card": "summary",
        "site_account": "@example",
        "creator_account": "@example",
        "title": "Example",
        "description": "Example",
        "image": "https://example.com/image.png",
        "image_alt": "Example",
    },
)

This is replacing the set_twitter_card() method.

With this, you can store the values in a database as JSON objects then pass them to the Head() constructor.

page = model.get_page_by_name("index")

head = Head(
    ...,
    twitter=page.twitter_card,
)

A really efficient way would be to store the entire head object as JSON and pass it to the Head() constructor.

page = model.get_page_by_name("index")

head = Head(**page.head)

the stored JSON data in this case would look something like:

{
  "base": "https://example.com",
  "title": "Hello World",
  "exclude_title_tags": true,
  "description": "This is a test",
  "keywords": "test, hello, world",
  "subject": "Hello World",
  "rating": "General",
  "robots": "index, follow",
  "referrer_policy": {
    "policy": "no-referrer",
    "fallback": "origin"
  },
  "google": {
    "googlebot": "index, follow",
    "no_sitelinks_search_box": true,
    "no_translate": true
  },
  "twitter_card": {
    "card": "summary",
    "site_account": "@example",
    "creator_account": "@example",
    "title": "Example",
    "description": "Example",
    "image": "https://example.com/image.png",
    "image_alt": "Example"
  },
  "favicon": {
    "ico_icon_href": "https://example.com/favicon.ico"
  }
}

CLI Commands

Generating favicons

You can generate favicons from a source image using the cli command pyhead favicons -s favicon-gen-test.png

This uses the python package favicons to generate the favicons.

You need to install the favicons package to use this command.

pip install favicons

All paths in the cli command are relative to the current working directory.

Only the following source formats are supported:

png, jpg, jpeg, gif, svg, tiff

-s, --source This will look for the image file to use

-o, --output This will be the output directory for the favicons

-hp, --href-prefix This will prefix the href tag in the output html

The following command:

pyhead favicons -s favicon-gen-test.png -o favicons -hp https://example.com

Will create a folder called favicons with the following files:

apple-touch-icon-57x57.png
apple-touch-icon-60x60.png
apple-touch-icon-72x72.png
apple-touch-icon-76x76.png
apple-touch-icon-114x114.png
apple-touch-icon-120x120.png
apple-touch-icon-144x144.png
apple-touch-icon-152x152.png
apple-touch-icon-167x167.png
apple-touch-icon-180x180.png
favicon-16x16.png
favicon-32x32.png
favicon-64x64.png
favicon-96x96.png
favicon-180x180.png
favicon-196x196.png
favicon-delete_me_after_use.html
favicon-delete_me_after_use.py
mstile-70x70.png
mstile-270x270.png
mstile-310x150.png
mstile-310x310.png

The favicon-delete_me_after_use.html file will contain the following:

<link rel="icon" href="https://example.com/favicon.ico" sizes="16x16 32x32">
<link rel="icon" href="https://example.com/favicon-16x16.png" sizes="16x16">
<link rel="icon" href="https://example.com/favicon-32x32.png" sizes="32x32">
<link rel="icon" href="https://example.com/favicon-64x64.png" sizes="64x64">
<link rel="icon" href="https://example.com/favicon-96x96.png" sizes="96x96">
<link rel="icon" href="https://example.com/favicon-180x180.png" sizes="180x180">
<link rel="icon" href="https://example.com/favicon-196x196.png" sizes="196x196">
<link rel="apple-touch-icon" href="https://example.com/apple-touch-icon-57x57.png" sizes="57x57">
<link rel="apple-touch-icon" href="https://example.com/apple-touch-icon-60x60.png" sizes="60x60">
<link rel="apple-touch-icon" href="https://example.com/apple-touch-icon-72x72.png" sizes="72x72">
<link rel="apple-touch-icon" href="https://example.com/apple-touch-icon-76x76.png" sizes="76x76">
<link rel="apple-touch-icon" href="https://example.com/apple-touch-icon-114x114.png" sizes="114x114">
<link rel="apple-touch-icon" href="https://example.com/apple-touch-icon-120x120.png" sizes="120x120">
<link rel="apple-touch-icon" href="https://example.com/apple-touch-icon-144x144.png" sizes="144x144">
<link rel="apple-touch-icon" href="https://example.com/apple-touch-icon-152x152.png" sizes="152x152">
<link rel="apple-touch-icon" href="https://example.com/apple-touch-icon-167x167.png" sizes="167x167">
<link rel="apple-touch-icon" href="https://example.com/apple-touch-icon-180x180.png" sizes="180x180">
<link rel="msapplication-square70x70logo" href="https://example.com/mstile-70x70.png">
<link rel="msapplication-square270x270logo" href="https://example.com/mstile-270x270.png">
<link rel="msapplication-wide310x150logo" href="https://example.com/mstile-310x150.png">
<link rel="msapplication-wide310x150logo" href="https://example.com/mstile-310x150.png">

The favicon-delete_me_after_use.py file will contain the following:

from pyhead import Head

head = Head()
head.set_favicon(
    ico_icon_href="/favicon.ico",
    png_icon_16_href="/favicon-16x16.png",
    png_icon_32_href="/favicon-32x32.png",
    png_icon_64_href="/favicon-64x64.png",
    png_icon_96_href="/favicon-96x96.png",
    png_icon_180_href="/favicon-180x180.png",
    png_icon_196_href="/favicon-196x196.png",
    png_apple_touch_icon_57_href="/apple-touch-icon-57x57.png",
    png_apple_touch_icon_60_href="/apple-touch-icon-60x60.png",
    png_apple_touch_icon_72_href="/apple-touch-icon-72x72.png",
    png_apple_touch_icon_76_href="/apple-touch-icon-76x76.png",
    png_apple_touch_icon_114_href="/apple-touch-icon-114x114.png",
    png_apple_touch_icon_120_href="/apple-touch-icon-120x120.png",
    png_apple_touch_icon_144_href="/apple-touch-icon-144x144.png",
    png_apple_touch_icon_152_href="/apple-touch-icon-152x152.png",
    png_apple_touch_icon_167_href="/apple-touch-icon-167x167.png",
    png_apple_touch_icon_180_href="/apple-touch-icon-180x180.png",
    png_mstile_70_href="/mstile-70x70.png",
    png_mstile_270_href="/mstile-270x270.png",
    png_mstile_310x150_href="/mstile-310x150.png",
    png_mstile_310_href="/mstile-310x150.png",
)

Remember to delete the favicon-delete_me_after_use.html and favicon-delete_me_after_use.py files after use.

Project details

Release history Release notifications | RSS feed

This version

4.1.0

Sep 13, 2024

4.0.1

Sep 12, 2024

4.0.0 yanked

Sep 12, 2024

Reason this release was yanked:

attrs not set to none causing breaking bugs

3.2

Jul 20, 2024

3.1

Jul 20, 2024

3.0

Jul 19, 2024

2.1

Jul 15, 2024

2.0

Jul 15, 2024

1.9

Jan 30, 2024

1.8

Jan 24, 2024

1.7

Jan 24, 2024

1.6

Dec 5, 2023

1.5

Dec 4, 2023

1.4

Dec 3, 2023

1.3

Dec 2, 2023

1.2

Dec 2, 2023

1.1

Dec 1, 2023

1.0

Dec 1, 2023

0.8

Dec 1, 2023

0.7

Dec 1, 2023

0.6

Dec 1, 2023

0.5

Dec 1, 2023

0.4

Nov 30, 2023

0.3

Nov 29, 2023

0.2

Nov 29, 2023

0.1

Nov 29, 2023

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