I tried working on a graphics algorith which requires a graphics
package, so I imported graphics
like in this code:
from graphics import *
import time
def BresenhamLine(x1,y1,x2,y2):
""" Bresenham Line Drawing Algorithm For All Kind Of Slopes Of Line """
dx = abs(x2 - x1)
dy = abs(y2 - y1)
slope = dy/float(dx)
x, y = x1, y1
# creating the window
win = GraphWin('Brasenham Line', 600, 480)
# checking the slope if slope > 1
# then interchange the role of x and y
if slope > 1:
dx, dy = dy, dx
x, y = y, x
x1, y1 = y1, x1
x2, y2 = y2, x2
# initialization of the inital disision parameter
p = 2 * dy - dx
PutPixle(win, x, y)
for k in range(2, dx):
if p > 0:
y = y + 1 if y < y2 else y - 1
p = p + 2*(dy - dx)
else:
p = p + 2*dy
x = x + 1 if x < x2 else x - 1
# delay for 0.01 secs
time.sleep(0.01)
PutPixle(win, x, y)
def PutPixle(win, x, y):
""" Plot A Pixle In The Windows At Point (x, y) """
pt = Point(x,y)
pt.draw(win)
def main():
x1 = int(input("Enter Start X: "))
y1 = int(input("Enter Start Y: "))
x2 = int(input("Enter End X: "))
y2 = int(input("Enter End Y: "))
BresenhamLine(x1, y1, x2, y2)
if __name__ == "__main__":
main()
But when I executed this code it gave me this error:
python app.py
Traceback (most recent call last):
File "app.py", line 1, in <module>
from graphics import *
ImportError: No module named graphics
So I tried to install the graphics package with pip but it too failed:
sudo pip install graphics
Downloading/unpacking graphics
Could not find any downloads that satisfy the requirement graphics
Cleaning up...
No distributions at all found for graphics
Storing debug log for failure in /home/ubuntu/.pip/pip.log
How to rectify this error?
You have to download this file and put it in the same folder with your script.
From the docstring:
INSTALLATION: Put this file somewhere where Python can see it.