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        <dc:date>2025-10-09T06:11:52+00:00</dc:date>
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        <title>fastapi</title>
        <link>http://wiki.billyrondon.com/doku.php/informatica:lenguajes_de_programacion:python:fastapi?rev=1759990312&amp;do=diff</link>
        <description>FastAPI

Luego de instalar Python para instalar FastAPI y Uvicorn (este último necesario para dar el servicio web).


pip install fastapi uvicorn


Para iniciar de forma mínima dando un mensaje simple, se crea una carpeta como proyecto y un archivo app.py:</description>
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        <title>pydantic_numpydantic</title>
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        <description>Pydantic y NumPydantic

	*  &lt;https://docs.pydantic.dev/latest/concepts/models/#model-methods-and-properties&gt;
	*  &lt;https://stackoverflow.com/questions/75979955/casting-a-pydantic-base-model-attribute-to-a-list&gt;</description>
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        <dc:date>2026-04-15T02:03:35+00:00</dc:date>
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        <title>python_db_postgresql</title>
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        <description>Python Conexión Postgresql

Psycopg2

Python : psycopg2 : conexión : ejemplo simple

ejemplo simple:


import psycopg2

cnx = psycopg2.connect( user=&quot;&lt;usuario&gt;&quot;,
                        password=&quot;&lt;password&gt;&quot;,
                        host=&quot;&lt;host&gt;&quot;,
                        port=&quot;&lt;port&gt;&quot;,
                        database=&quot;&lt;db&gt;&quot; )
                        
print(&quot;Informarción PostgreSQL Server:&quot;)
print(cnx.get_dsn_parameters(), &quot;\n&quot;)</description>
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        <dc:date>2025-09-23T09:51:00+00:00</dc:date>
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        <title>python_jwt_oauth2</title>
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        <description>Python JWT OAuth2

	*  &lt;https://www.youtube.com/watch?v=jOfN4jmOkcI&gt;</description>
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        <title>python_simplehttpserver</title>
        <link>http://wiki.billyrondon.com/doku.php/informatica:lenguajes_de_programacion:python:python_simplehttpserver?rev=1769703413&amp;do=diff</link>
        <description>Python Simple HTTP Server

	*  &lt;https://www.digitalocean.com/community/tutorials/python-simplehttpserver-http-server&gt;
	*  &lt;https://stackoverflow.com/questions/31151615/how-to-handle-proxies-in-urllib3&gt;

Safe thread, multihilo, multiusuarios, lo normal solo un usuario en un hilo:

	*  &lt;https://obinexus.medium.com/python-is-a-great-language-for-building-servers-especially-for-quick-projects-and-prototyping-71e0769bf738&gt;
	*  &lt;https://stackoverflow.com/questions/2632520/what-is-the-fastest-way-to-se…</description>
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        <dc:date>2026-02-01T05:58:55+00:00</dc:date>
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        <title>python_urrlib</title>
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        <description>Python UrlLib

	*  &lt;https://stackabuse.com/guide-to-sending-http-requests-in-python-with-urllib3/&gt;
 Informational codes                         (between 100 and 199)                                Successful codes                            (between 200 and 299) - 200 is the most common one   Redirect codes</description>
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        <dc:date>2025-10-09T06:17:16+00:00</dc:date>
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        <title>start</title>
        <link>http://wiki.billyrondon.com/doku.php/informatica:lenguajes_de_programacion:python:start?rev=1759990636&amp;do=diff</link>
        <description>Python

	*  &lt;https://www.python.org/&gt;

Tipo de Datos

String (str)

Cadena de caracteres.


x = &quot;Hola Mundo&quot;

x = str(&quot;Hola Mundo&quot;)


Integer (int)

Número entero.


x = 4

x = int(4)


Float (float)

Número Decimal


x = 2.7

x = float(2.7)


Complex (complex)

Número complejo</description>
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