A computational notebook combines executable code, its results, and explanatory Markdown text in an interactive document accessed through a web interface. It supports teaching, data exploration, data science, and AI experimentation. section 2.1.4
A Jupyter notebook organizes work into two cell types:
- Text cells contain editable, formattable Markdown. section 2.3
- Code cells contain executable Python and display output directly below the cell. section 2.3
- Run a focused code cell with Ctrl-Enter, a context-menu command, or the play control. section 2.3
- Review errors beneath the cell; Colaboratory may offer an automatic fix, which requires checking before acceptance. section 2.3.2
A first executable cell
Enter print("Hello, World") in a code cell and run it. The output, Hello, World, appears immediately below the cell. section 2.3.1
Inspecting a syntax error
Running print("Hello, World!" without its closing parenthesis produces an error below the cell. Python identifies the line, marks the location with a caret, and reports SyntaxError: incomplete input. section 2.3.2
print("Hello, World") #1
Hello, World #2
#1 Code entered in code cell
#2 Output from running code, below code cell
Use the compact listing to distinguish code entered in a cell from the output produced beneath it. section 2.3.1
