python

Table of Contents

• Tables
  • Usage
    • Output str array as table
    • Output array as table with separate header row and column
    • Output array as table
    • Output sorted array as table
    • Output single function as table
    • Output lambda function as table
    • Output multiple functions as table
    • Output multiple lambda functions as table
  • Options
• Graphs/Plots
  • Usage
    • Output array as histogram
    • Output single array as plot
    • Output multiple arrays as plot
    • Output single function as graph
    • Output lambda function as graph
    • Output multiple functions as graph
    • Output multiple lambda functions as graph
  • Options

Tables

Usage

Requires Python 3.6 or greater and if not on Linux or macOS, the wcwidth library, which users can install with:

pip3 install wcwidth
# or
python3 -m pip install wcwidth

See the tables.py file for full usage information.

Complete versions of all of the examples below and more can be found in the test.py file.

Run with: python3 -OO test.py.

Output str array as table

import tables

# Set array

tables.array(array, headerrow=True, headercolumn=True)

Table cells can contain Unicode characters and formatted text with ANSI escape sequences, but not newlines and tabs.

Output array as table with separate header row and column

import tables

headerrow = ["Header row/column 1", "Header row 2", "Header row 3", "Header row 4", "Header row 5"]
headercolumn = ["Header column 2", "Header column 3", "Header column 4", "Header column 5"]

# Set array

tables.array(array, headerrow, headercolumn, headerrow=True, headercolumn=True)

Output same as example above.

Output array as table

import tables

# Set array, can be any sequence data type

tables.array(array)

Output sorted array as table

import tables

# Set array

sortdimension = 0  # Column to sort by

array = sorted(array, key=lambda x: x[sortdimension])

tables.array(array)

Output single function as table

import tables

def afunction(x):
	return x + 1

xmin = -10
xmax = 10
xstep = 0.5

tables.function(xmin, xmax, xstep, afunction, headerrow=True)

Output lambda function as table

import tables

xmin = -10
xmax = 10
xstep = 0.5

afunction = lambda x: x + 1

tables.function(xmin, xmax, xstep, afunction, headerrow=True)

Output same as example above.

Output multiple functions as table

import tables

def function1(x):
	return 2 * x

def function2(x):
	return x ** 2

xmin = -10
xmax = 10
xstep = 0.5

# Function parameter and return value can be any data type, as long as they are the same
functions = [function1, function2]

tables.functions(xmin, xmax, xstep, functions, headerrow=True)

Output multiple lambda functions as table

import tables

xmin = -10
xmax = 10
xstep = 0.5

# Function parameter and return value can be any data type, as long as they are the same
functions = [lambda x: 2 * x, lambda x: x ** 2]

tables.functions(xmin, xmax, xstep, functions, headerrow=True)

Output same as example above.

Options

Header row

Option: headerrow
Default value: False

Header rows are bolded, centered and have a border.

Header column

Option: headercolumn
Default value: False

Header columns are bolded, centered and have a border.

Table border

Option: tableborder
Default value: True

Cell border

Option: cellborder
Default value: False

Cell padding

Option: padding
Default value: 1

Alignment

Option: alignment
Values:

• None (default)
• False (left)
• True (right)

Title

Option: title
Default value: None

The title is output at the top of the table. It is word wrapped based on the current width of the terminal. Handles newlines, tabs and Unicode characters.

Border style

Option: style
Values:

0. style_types.ASCII: ASCII
1. style_types.basic: Basic
2. style_types.light: Light (default)
3. style_types.heavy: Heavy
4. style_types.double: Double
5. style_types.arc: Light Arc
6. style_types.light_dashed: Light Dashed
7. style_types.heavy_dashed: Heavy Dashed

Check size

Option: check
Default value: True

Check that the width of the table is not greater then the width of the terminal.

Graphs/Plots

Usage

Requires Python 3.6 or greater and if not on Linux or macOS, the wcwidth library, which users can install with:

pip3 install wcwidth
# or
python3 -m pip install wcwidth

See the graphs.py file for full usage information.

Complete versions of all of the examples below and more can be found in the test.py file.

Run with: python3 -OO test.py.

If height is 0, it will be set to the current height of the terminal (number of rows times four). If width is 0, it will be set to the current width of the terminal (number of columns times two).

Output array as histogram

import graphs

height = 160
width = 160

xmin = -20
xmax = 20
ymin = -20
ymax = 20

# Set array, can be any sequence data type

graphs.histogram(height, width, xmin, xmax, ymin, ymax, array)

If xmin and xmax are both 0, they will be set to the respective minimum and maximum values of x in the array. If ymin and ymax are both 0, they will be set to the respective minimum and maximum values of y in the resulting histogram.

Output single array as plot

import graphs

height = 160
width = 160

xmin = -20
xmax = 20
ymin = -20
ymax = 20

# Set array, can be any sequence data type, but must have exactly two columns

graphs.plot(height, width, xmin, xmax, ymin, ymax, array)

If xmin and xmax are both 0, they will be set to the respective minimum and maximum values of x in the array. If ymin and ymax are both 0, they will be set to the respective minimum and maximum values of y in the array.

Use graphs.plots() to plot multiple arrays, which can be of different sizes.

Output single function as graph

import graphs

def afunction(x):
	return x + 1

height = 160
width = 160

xmin = -20
xmax = 20
ymin = -20
ymax = 20

graphs.function(height, width, xmin, xmax, ymin, ymax, afunction)

Output lambda function as graph

import graphs

height = 160
width = 160

xmin = -20
xmax = 20
ymin = -20
ymax = 20

afunction = lambda x: x + 1

graphs.function(height, width, xmin, xmax, ymin, ymax, afunction)

Output same as example above.

Output multiple functions as graph

import graphs

def function1(x):
	return 2 * x

def function2(x):
	return x ** 2

height = 160
width = 160

xmin = -20
xmax = 20
ymin = -20
ymax = 20

# Function parameter and return value can be any data type, as long as they are the same
functions = [function1, function2]

graphs.functions(height, width, xmin, xmax, ymin, ymax, functions)

Output multiple lambda functions as graph

import graphs

height = 160
width = 160

xmin = -20
xmax = 20
ymin = -20
ymax = 20

# Function parameter and return value can be any data type, as long as they are the same
functions = [lambda x: 2 * x, lambda x: x ** 2]

graphs.functions(height, width, xmin, xmax, ymin, ymax, functions)

Output same as example above.

Options

Border

Option: border
Default value: False

Axis

Option: axis
Default value: True

Axis labels

Option: axislabel
Default value: True

Requires axis to be True.

Axis tick marks

Option: axistick
Default value: True

Requires axis to be True.

Axis units labels

Option: axisunitslabel
Default value: True

Requires axis and axistick to be True.

X-axis units format

Option: xunits
Values:

1. units_types.number: Locale number format
2. units_types.scale_none: Locale number format with full precision
3. units_types.scale_SI: Auto-scale to the SI standard
4. units_types.scale_IEC: Auto-scale to the IEC standard
5. units_types.scale_IEC_I: Auto-scale to the IEC standard
6. units_types.fracts: Locale number format, but convert fractions and mathematical constants to Unicode characters (default)
7. units_types.percent: Percentage format
8. units_types.date: Locale date format
9. units_types.time: Locale time format
10. units_types.monetary: Locale monetary/currency format

Formats 2-5 are similar to the respective --to options with the numfmt command from GNU Coreutils, but with more precision.

Y-axis units format

Option: yunits
Values: Same as above.

Type

Option: type
Values:

1. type_types.braille: Braille (default)
2. type_types.block: Block

The Braille type has the highest resolution of 2×4 pixels per character, while the block type uses 2×2. This option is only used for plots and graphs. Histograms use 1×8 pixels per character.

Mark type

Option: mark
Values:

1. mark_types.dot: Dot (default)
2. mark_types.plus: Plus
3. mark_types.square: Square

The dot mark type uses a single pixel per mark, the plus uses five pixels and the square uses eight pixels. This option is only used for plots and graphs.

Title

Option: title
Default value: None

The title is output at the top of the graph. It is word wrapped based on the current width of the terminal. Handles newlines, tabs and Unicode characters.

Axis/Border style

Option: style
Values:

0. style_types.ASCII: ASCII
1. style_types.basic: Basic
2. style_types.light: Light (default)
3. style_types.heavy: Heavy
4. style_types.double: Double
5. style_types.arc: Light Arc
6. style_types.light_dashed: Light Dashed
7. style_types.heavy_dashed: Heavy Dashed

Graph/Plot Color

Option: color
Values:

0. color_types.default: System default
1. color_types.black: Black
2. color_types.red: Red (default)
3. color_types.green: Green
4. color_types.yellow: Yellow
5. color_types.blue: Blue
6. color_types.magenta: Magenta
7. color_types.cyan: Cyan
8. color_types.white: White
9. color_types.gray: Gray
10. color_types.bright_red: Bright Red
11. color_types.bright_green: Bright Green
12. color_types.bright_yellow: Bright Yellow
13. color_types.bright_blue: Bright Blue
14. color_types.bright_magenta: Bright Magenta
15. color_types.bright_cyan: Bright Cyan
16. color_types.bright_white: Bright White

See here for examples of the colors.

This option is only used when plotting a single array and when graphing a single function. When plotting multiple arrays or graphing multiple functions, colors 2 - 16 are used inorder. The system default color is used where the plots cross.

Plot

Graph

Check size

Option: check
Default value: True

Check that the width and height of the graph are not greater then the respective width and height of the terminal.