CSnap/cheetsheetz
CSnap
/
cheetsheetz
1
1
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Modified Python Sheet.

This commit is contained in:
CSnap 2023-11-19 08:04:22 +00:00
parent b163490cea
commit 615bc8c2e7
1 changed files with 20 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
python.md
View File

@ -16,26 +16,16 @@
12. [Exception Handling](#exception-handling) 12. [Exception Handling](#exception-handling)
13. [Classes and Objects](#classes-and-objects) 13. [Classes and Objects](#classes-and-objects)
14. [SQLite3 Database Connection](#sqlite3-database-connection) 14. [SQLite3 Database Connection](#sqlite3-database-connection)
14.1 [Connecting to a Database](#connecting-to-a-database)
14.1 [Connecting to a Database](##connecting-to-a-database) 14.2 [Creating a Table](#creating-a-table)
14.3 [Inserting Data](#inserting-data)
14.2 [Creating a Table](#creating-a-table) 14.4 [Querying Data](#querying-data)
14.5 [Updating Data](#updating-data)
14.3 [Inserting Data](#inserting-data) 14.6 [Deleting Data](#deleting-data)
14.7 [Closing the Connection](#closing-the-connection)
14.4 [Querying Data](#querying-data)
14.5 [Updating Data](#updating-data)
14.6 [Deleting Data](#deleting-data)
14.7 [Closing the Connection](#closing-the-connection)
15. [JSON Data Connection](#json-data-connection) 15. [JSON Data Connection](#json-data-connection)
15.1 [Loading JSON Data](#loading-json-data)
15.1 [Loading JSON Data](#loading-json-data) 15.2 [Writing JSON Data](#writing-json-data)
15.2 [Writing JSON Data](#writing-json-data)
## Variables ## Variables
@ -243,9 +233,9 @@ import sqlite3
import json import json
``` ```
## 14. SQLite3 Database Connection ## SQLite3 Database Connection
### 14.1 Connecting to a Database ### Connecting to a Database
```python ```python
# Connect to a database (creates a new database if it doesn't exist) # Connect to a database (creates a new database if it doesn't exist)
@ -255,7 +245,7 @@ conn = sqlite3.connect('example.db')
cursor = conn.cursor() cursor = conn.cursor()
``` ```
### 14.2 Creating a Table ### Creating a Table
```python ```python
# Create a table # Create a table
@ -271,7 +261,7 @@ cursor.execute('''
conn.commit() conn.commit()
``` ```
### 14.3 Inserting Data ### Inserting Data
```python ```python
# Insert data into the table # Insert data into the table
@ -284,7 +274,7 @@ cursor.execute('''
conn.commit() conn.commit()
``` ```
### 14.4 Querying Data ### Querying Data
```python ```python
# Fetch all rows from the table # Fetch all rows from the table
@ -296,7 +286,7 @@ for row in rows:
print(row) print(row)
``` ```
### 14.5 Updating Data ### Updating Data
```python ```python
# Update data in the table # Update data in the table
@ -310,7 +300,7 @@ cursor.execute('''
conn.commit() conn.commit()
``` ```
### 14.6 Deleting Data ### Deleting Data
```python ```python
# Delete data from the table # Delete data from the table
@ -323,7 +313,7 @@ cursor.execute('''
conn.commit() conn.commit()
``` ```
### 14.7 Closing the Connection ### Closing the Connection
```python ```python
# Close the cursor and connection when done # Close the cursor and connection when done
@ -331,9 +321,9 @@ cursor.close()
conn.close() conn.close()
``` ```
## 15. JSON Data Connection ## JSON Data Connection
### 15.1 Loading JSON Data ### Loading JSON Data
```python ```python
# Load JSON data from a file # Load JSON data from a file
@ -342,7 +332,7 @@ with open('data.json', 'r') as json_file:
print(data) print(data)
``` ```
### 15.2 Writing JSON Data ### Writing JSON Data
```python ```python
# Write Python data to a JSON file # Write Python data to a JSON file