other

Author: furas

CGI/running-scripts-with-correct-extensions/example-1.py

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+#!/usr/bin/env python3
+
+import BaseHTTPServer
+import CGIHTTPServer
+
+class MyHandler(CGIHTTPServer.CGIHTTPRequestHandler):
+
+    cgi_exts = ['.py']
+
+    def do_GET(self):
+        """Serve a GET request."""
+        f = self.send_head()
+        if f:
+            try:
+                self.wfile.write("ABBA\n")
+            finally:
+                f.close()
+
+    def is_cgi(self):
+        collapsed_path = _url_collapse_path(self.path)
+        dir_sep = collapsed_path.find('/', 1)
+        head, tail = collapsed_path[:dir_sep], collapsed_path[dir_sep+1:]
+        if head in self.cgi_directories:
+            if tail.endswith('.py'):
+                self.cgi_info = head, tail
+                return True
+        return False
+
+server = BaseHTTPServer.HTTPServer(('', 8000), MyHandler)
+server.serve_forever()
+

pygame/Vector2-angle/example-1.py

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+#!/usr/bin/env python3
+
+'''
+angle between line from A to B and horizontal line
+'''
+
+import math
+import pygame
+
+data = [
+    [(5, 2), (4, 6)],   # 104.03624346792648
+    [(0, 0), (14, 14)], #  45.0
+    [(0, 0), (0, 14)],  #  90.0
+    [(0, 0), (0, -14)], # -90.0
+    [(0, 0), (14, 0)],  #   0.0
+    [(0, 0), (-14, 0)], # 180.0
+    [(0, 0), (2, 1.31545)], # 33.333
+]
+
+for (ax, ay), (bx, by) in data:
+
+    print("  Math:", math.degrees(math.atan2(by - ay, bx - ax)))
+
+    #a = pygame.math.Vector2( (ax, ay) )
+    #b = pygame.math.Vector2( (bx, by) )
+    # or
+    a = pygame.math.Vector2(ax, ay)
+    b = pygame.math.Vector2(bx, by)
+
+    zero = pygame.math.Vector2()
+
+    print('PyGame:', zero.angle_to(b-a))
+
+    #a = pygame.math.Vector2( pygame.mouse.get_pos() )
+    #b = pygame.math.Vector2( player.rect.center )
+

pygame/Vector2-angle/example-2.py

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+#!/usr/bin/env python3
+
+'''
+angle between line from A to B and horizontal line
+'''
+
+#!/usr/bin/env python3
+
+#
+# pygame (empty) template - by furas
+#
+
+# ---------------------------------------------------------------------
+
+__author__  = 'Bartlomiej "furas" Burek'
+__webpage__ = 'http://blog.furas.pl'
+
+# ---------------------------------------------------------------------
+
+import pygame
+
+# === CONSTANS === (UPPER_CASE names)
+
+BLACK = (  0,   0,   0)
+WHITE = (255, 255, 255)
+
+RED   = (255,   0,   0)
+GREEN = (  0, 255,   0)
+BLUE  = (  0,   0, 255)
+
+SCREEN_WIDTH  = 600
+SCREEN_HEIGHT = 400
+
+# === CLASSES === (CamelCase names)
+
+    # empty
+
+# === FUNCTIONS === (lower_case names)
+
+def angle(ax, ay, bx, by):
+
+    print("  Math:", math.degrees(math.atan2(by - ay, bx - ax)))
+
+    #a = pygame.math.Vector2( (ax, ay) )
+    #b = pygame.math.Vector2( (bx, by) )
+    # or
+    a = pygame.math.Vector2(ax, ay)
+    b = pygame.math.Vector2(bx, by)
+
+    zero = pygame.math.Vector2()
+
+    print('PyGame:', zero.angle_to(b-a))
+
+    #a = pygame.math.Vector2( pygame.mouse.get_pos() )
+    #b = pygame.math.Vector2( player.rect.center )
+
+
+# === MAIN === (lower_case names)
+
+# --- (global) variables ---
+
+# --- init ---
+
+pygame.init()
+
+screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
+screen_rect = screen.get_rect()
+
+# --- objects ---
+
+ax, ay = screen_rect.center
+
+# --- mainloop ---
+
+clock = pygame.time.Clock()
+is_running = True
+
+while is_running:
+
+    # --- events ---
+
+    for event in pygame.event.get():
+
+        # --- global events ---
+
+        if event.type == pygame.QUIT:
+            is_running = False
+        elif event.type == pygame.KEYDOWN:
+            if event.key == pygame.K_ESCAPE:
+                is_running = False
+
+        # --- objects events ---
+
+            # empty
+
+    # --- updates ---
+
+    bx, by = pygame.mouse.pos()
+
+    # --- draws ---
+
+    screen.fill(BLACK)
+
+    pygame.draw.line(screen, )
+
+    pygame.display.update()
+
+    # --- FPS ---
+
+    clock.tick(25)
+
+# --- the end ---
+
+pygame.quit()
+

pyqt4/qtimer-singleshot-with-argument/example-1.py

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+#!/usr/bin/env python3
+
+import sys
+from PyQt4 import QtGui, QtCore
+
+def num(i):
+    print i
+    i += 1
+    if i < 10:
+        # run again after 2000ms with argument
+        QtCore.QTimer.singleShot(2000, lambda:num(i))
+
+app = QtGui.QApplication(sys.argv)
+
+# run first time with start argument
+num(1)
+#QtCore.QTimer.singleShot(2000, lambda:num(1))
+
+sys.exit(app.exec_())

tkinter/button-keypad/README.md

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+
+## example-1.py
+
+![#1](screenshots/image-1.png?raw=true)

tkinter/button-keypad/example-1.py

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+#!/usr/bin/env python3
+
+import tkinter as tk
+
+
+def code(value):
+    # inform function to use external/global variable
+    global pin
+
+    if value == '*':
+        # remove last element from `pin`
+        pin = pin[:-1]
+        # remove all from `entry` and put new `pin`
+        e.delete('0', 'end')
+        e.insert('end', pin)
+
+    elif value == '#':
+        # check pin
+        if pin == "3529":
+            print("PIN OK")
+        else:
+            print("PIN ERROR!")
+            # clear pin
+            pin = ''
+            e.delete('0', 'end')
+
+    else:
+        # add number to `pin`
+        pin += value
+        # add number to `entry`
+        e.insert('end', value)
+
+    print("Current:", pin)
+
+# --- main ---
+
+# keypad description
+keys = [
+    ['1', '2', '3'],
+    ['4', '5', '6'],
+    ['7', '8', '9'],
+    ['*', '9', '#'],
+]
+
+# create global variable
+pin = '' # empty string
+
+# init
+root = tk.Tk()
+
+# create `entry` to display `pin`
+e = tk.Entry(root, justify='right')
+e.grid(row=0, column=0, columnspan=3, ipady=5)
+
+# create `buttons` using `keys
+for y, row in enumerate(keys, 1):
+    for x, key in enumerate(row):
+        # `lambda` inside `for` have to use `val=key:code(val)`
+        # instead of direct `code(key)`
+        b = tk.Button(root, text=key, command=lambda val=key:code(val))
+        b.grid(row=y, column=x, ipadx=10, ipady=10)
+
+# start program
+root.mainloop()