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====== Snippets: Python: Datenbanken ======

[[:snippets:start|← Zurück zu :snippets:start]]\\
[[:snippets:python:start|← Zurück zu :snippets:python:start]]


===== pickledb =====

  * [[https://harrisonerd.com/pickledb/|pickleDB · Lightning-Fast Key-Value Store for Python]]

==== Beispiel ====

> Das Beispiel von der pickledb-Webseite:

<code python [enable_line_numbers="true"]>
from pickledb import PickleDB

# Bind to a JSON file; no I/O yet
db = PickleDB("data.json")
db.load()

db.set("username", "alice")
db.set("theme", {
    "color": "blue",
    "font": "sans-serif"
})

print(db.get("username"))  # → "alice"

db.save()  # atomically write to disk
</code>

===== SQLite =====

  * [[https://sqlite.org/|SQLite]]

==== Beispiel ====

<code python [enable_line_numbers="true"]>
import os
import sqlite3


DB = "~/python.sqlite3"


DB = os.path.expanduser(
    os.path.expandvars(DB)
)
if not os.path.exists(DB):
    pass

con = sqlite3.connect(DB)
cur = con.cursor()
cur.execute("CREATE TABLE IF NOT EXISTS ...")
</code>