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New class and New example

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This commit is contained in:
shrkey
2016-02-21 20:13:16 +00:00
parent c2b05aeb22
commit 6c9d55a309
4 changed files with 236 additions and 556 deletions
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425
dw640HAT/dw640HAT.py
View File

@@ -5,172 +5,172 @@ from Adafruit_PWM_Servo_Driver import PWM
import time import time
# class Adafruit_StepperMotor: # class Adafruit_StepperMotor:
# MICROSTEPS = 8 # MICROSTEPS = 8
# MICROSTEP_CURVE = [0, 50, 98, 142, 180, 212, 236, 250, 255] # MICROSTEP_CURVE = [0, 50, 98, 142, 180, 212, 236, 250, 255]
# #
# #MICROSTEPS = 16 # #MICROSTEPS = 16
# # a sinusoidal curve NOT LINEAR! # # a sinusoidal curve NOT LINEAR!
# #MICROSTEP_CURVE = [0, 25, 50, 74, 98, 120, 141, 162, 180, 197, 212, 225, 236, 244, 250, 253, 255] # #MICROSTEP_CURVE = [0, 25, 50, 74, 98, 120, 141, 162, 180, 197, 212, 225, 236, 244, 250, 253, 255]
# #
# def __init__(self, controller, num, steps=200): # def __init__(self, controller, num, steps=200):
# self.MC = controller # self.MC = controller
# self.revsteps = steps # self.revsteps = steps
# self.motornum = num # self.motornum = num
# self.sec_per_step = 0.1 # self.sec_per_step = 0.1
# self.steppingcounter = 0 # self.steppingcounter = 0
# self.currentstep = 0 # self.currentstep = 0
# #
# num -= 1 # num -= 1
# #
# if (num == 0): # if (num == 0):
# self.PWMA = 8 # self.PWMA = 8
# self.AIN2 = 9 # self.AIN2 = 9
# self.AIN1 = 10 # self.AIN1 = 10
# self.PWMB = 13 # self.PWMB = 13
# self.BIN2 = 12 # self.BIN2 = 12
# self.BIN1 = 11 # self.BIN1 = 11
# elif (num == 1): # elif (num == 1):
# self.PWMA = 2 # self.PWMA = 2
# self.AIN2 = 3 # self.AIN2 = 3
# self.AIN1 = 4 # self.AIN1 = 4
# self.PWMB = 7 # self.PWMB = 7
# self.BIN2 = 6 # self.BIN2 = 6
# self.BIN1 = 5 # self.BIN1 = 5
# else: # else:
# raise NameError('MotorHAT Stepper must be between 1 and 2 inclusive') # raise NameError('MotorHAT Stepper must be between 1 and 2 inclusive')
# #
# def setSpeed(self, rpm): # def setSpeed(self, rpm):
# self.sec_per_step = 60.0 / (self.revsteps * rpm) # self.sec_per_step = 60.0 / (self.revsteps * rpm)
# self.steppingcounter = 0 # self.steppingcounter = 0
# #
# def oneStep(self, dir, style): # def oneStep(self, dir, style):
# pwm_a = pwm_b = 255 # pwm_a = pwm_b = 255
# #
# # first determine what sort of stepping procedure we're up to # # first determine what sort of stepping procedure we're up to
# if (style == Adafruit_MotorHAT.SINGLE): # if (style == Adafruit_MotorHAT.SINGLE):
# if ((self.currentstep/(self.MICROSTEPS/2)) % 2): # if ((self.currentstep/(self.MICROSTEPS/2)) % 2):
# # we're at an odd step, weird # # we're at an odd step, weird
# if (dir == Adafruit_MotorHAT.FORWARD): # if (dir == Adafruit_MotorHAT.FORWARD):
# self.currentstep += self.MICROSTEPS/2 # self.currentstep += self.MICROSTEPS/2
# else: # else:
# self.currentstep -= self.MICROSTEPS/2 # self.currentstep -= self.MICROSTEPS/2
# else: # else:
# # go to next even step # # go to next even step
# if (dir == Adafruit_MotorHAT.FORWARD): # if (dir == Adafruit_MotorHAT.FORWARD):
# self.currentstep += self.MICROSTEPS # self.currentstep += self.MICROSTEPS
# else: # else:
# self.currentstep -= self.MICROSTEPS # self.currentstep -= self.MICROSTEPS
# if (style == Adafruit_MotorHAT.DOUBLE): # if (style == Adafruit_MotorHAT.DOUBLE):
# if not (self.currentstep/(self.MICROSTEPS/2) % 2): # if not (self.currentstep/(self.MICROSTEPS/2) % 2):
# # we're at an even step, weird # # we're at an even step, weird
# if (dir == Adafruit_MotorHAT.FORWARD): # if (dir == Adafruit_MotorHAT.FORWARD):
# self.currentstep += self.MICROSTEPS/2 # self.currentstep += self.MICROSTEPS/2
# else: # else:
# self.currentstep -= self.MICROSTEPS/2 # self.currentstep -= self.MICROSTEPS/2
# else: # else:
# # go to next odd step # # go to next odd step
# if (dir == Adafruit_MotorHAT.FORWARD): # if (dir == Adafruit_MotorHAT.FORWARD):
# self.currentstep += self.MICROSTEPS # self.currentstep += self.MICROSTEPS
# else: # else:
# self.currentstep -= self.MICROSTEPS # self.currentstep -= self.MICROSTEPS
# if (style == Adafruit_MotorHAT.INTERLEAVE): # if (style == Adafruit_MotorHAT.INTERLEAVE):
# if (dir == Adafruit_MotorHAT.FORWARD): # if (dir == Adafruit_MotorHAT.FORWARD):
# self.currentstep += self.MICROSTEPS/2 # self.currentstep += self.MICROSTEPS/2
# else: # else:
# self.currentstep -= self.MICROSTEPS/2 # self.currentstep -= self.MICROSTEPS/2
# #
# if (style == Adafruit_MotorHAT.MICROSTEP): # if (style == Adafruit_MotorHAT.MICROSTEP):
# if (dir == Adafruit_MotorHAT.FORWARD): # if (dir == Adafruit_MotorHAT.FORWARD):
# self.currentstep += 1 # self.currentstep += 1
# else: # else:
# self.currentstep -= 1 # self.currentstep -= 1
# #
# # go to next 'step' and wrap around # # go to next 'step' and wrap around
# self.currentstep += self.MICROSTEPS * 4 # self.currentstep += self.MICROSTEPS * 4
# self.currentstep %= self.MICROSTEPS * 4 # self.currentstep %= self.MICROSTEPS * 4
# #
# pwm_a = pwm_b = 0 # pwm_a = pwm_b = 0
# if (self.currentstep >= 0) and (self.currentstep < self.MICROSTEPS): # if (self.currentstep >= 0) and (self.currentstep < self.MICROSTEPS):
# pwm_a = self.MICROSTEP_CURVE[self.MICROSTEPS - self.currentstep] # pwm_a = self.MICROSTEP_CURVE[self.MICROSTEPS - self.currentstep]
# pwm_b = self.MICROSTEP_CURVE[self.currentstep] # pwm_b = self.MICROSTEP_CURVE[self.currentstep]
# elif (self.currentstep >= self.MICROSTEPS) and (self.currentstep < self.MICROSTEPS*2): # elif (self.currentstep >= self.MICROSTEPS) and (self.currentstep < self.MICROSTEPS*2):
# pwm_a = self.MICROSTEP_CURVE[self.currentstep - self.MICROSTEPS] # pwm_a = self.MICROSTEP_CURVE[self.currentstep - self.MICROSTEPS]
# pwm_b = self.MICROSTEP_CURVE[self.MICROSTEPS*2 - self.currentstep] # pwm_b = self.MICROSTEP_CURVE[self.MICROSTEPS*2 - self.currentstep]
# elif (self.currentstep >= self.MICROSTEPS*2) and (self.currentstep < self.MICROSTEPS*3): # elif (self.currentstep >= self.MICROSTEPS*2) and (self.currentstep < self.MICROSTEPS*3):
# pwm_a = self.MICROSTEP_CURVE[self.MICROSTEPS*3 - self.currentstep] # pwm_a = self.MICROSTEP_CURVE[self.MICROSTEPS*3 - self.currentstep]
# pwm_b = self.MICROSTEP_CURVE[self.currentstep - self.MICROSTEPS*2] # pwm_b = self.MICROSTEP_CURVE[self.currentstep - self.MICROSTEPS*2]
# elif (self.currentstep >= self.MICROSTEPS*3) and (self.currentstep < self.MICROSTEPS*4): # elif (self.currentstep >= self.MICROSTEPS*3) and (self.currentstep < self.MICROSTEPS*4):
# pwm_a = self.MICROSTEP_CURVE[self.currentstep - self.MICROSTEPS*3] # pwm_a = self.MICROSTEP_CURVE[self.currentstep - self.MICROSTEPS*3]
# pwm_b = self.MICROSTEP_CURVE[self.MICROSTEPS*4 - self.currentstep] # pwm_b = self.MICROSTEP_CURVE[self.MICROSTEPS*4 - self.currentstep]
# #
# #
# # go to next 'step' and wrap around # # go to next 'step' and wrap around
# self.currentstep += self.MICROSTEPS * 4 # self.currentstep += self.MICROSTEPS * 4
# self.currentstep %= self.MICROSTEPS * 4 # self.currentstep %= self.MICROSTEPS * 4
# #
# # only really used for microstepping, otherwise always on! # # only really used for microstepping, otherwise always on!
# self.MC._pwm.setPWM(self.PWMA, 0, pwm_a*16) # self.MC._pwm.setPWM(self.PWMA, 0, pwm_a*16)
# self.MC._pwm.setPWM(self.PWMB, 0, pwm_b*16) # self.MC._pwm.setPWM(self.PWMB, 0, pwm_b*16)
# #
# # set up coil energizing! # # set up coil energizing!
# coils = [0, 0, 0, 0] # coils = [0, 0, 0, 0]
# #
# if (style == Adafruit_MotorHAT.MICROSTEP): # if (style == Adafruit_MotorHAT.MICROSTEP):
# if (self.currentstep >= 0) and (self.currentstep < self.MICROSTEPS): # if (self.currentstep >= 0) and (self.currentstep < self.MICROSTEPS):
# coils = [1, 1, 0, 0] # coils = [1, 1, 0, 0]
# elif (self.currentstep >= self.MICROSTEPS) and (self.currentstep < self.MICROSTEPS*2): # elif (self.currentstep >= self.MICROSTEPS) and (self.currentstep < self.MICROSTEPS*2):
# coils = [0, 1, 1, 0] # coils = [0, 1, 1, 0]
# elif (self.currentstep >= self.MICROSTEPS*2) and (self.currentstep < self.MICROSTEPS*3): # elif (self.currentstep >= self.MICROSTEPS*2) and (self.currentstep < self.MICROSTEPS*3):
# coils = [0, 0, 1, 1] # coils = [0, 0, 1, 1]
# elif (self.currentstep >= self.MICROSTEPS*3) and (self.currentstep < self.MICROSTEPS*4): # elif (self.currentstep >= self.MICROSTEPS*3) and (self.currentstep < self.MICROSTEPS*4):
# coils = [1, 0, 0, 1] # coils = [1, 0, 0, 1]
# else: # else:
# step2coils = [ [1, 0, 0, 0], # step2coils = [ [1, 0, 0, 0],
# [1, 1, 0, 0], # [1, 1, 0, 0],
# [0, 1, 0, 0], # [0, 1, 0, 0],
# [0, 1, 1, 0], # [0, 1, 1, 0],
# [0, 0, 1, 0], # [0, 0, 1, 0],
# [0, 0, 1, 1], # [0, 0, 1, 1],
# [0, 0, 0, 1], # [0, 0, 0, 1],
# [1, 0, 0, 1] ] # [1, 0, 0, 1] ]
# coils = step2coils[self.currentstep/(self.MICROSTEPS/2)] # coils = step2coils[self.currentstep/(self.MICROSTEPS/2)]
# #
# #print "coils state = " + str(coils) # #print "coils state = " + str(coils)
# self.MC.setPin(self.AIN2, coils[0]) # self.MC.setPin(self.AIN2, coils[0])
# self.MC.setPin(self.BIN1, coils[1]) # self.MC.setPin(self.BIN1, coils[1])
# self.MC.setPin(self.AIN1, coils[2]) # self.MC.setPin(self.AIN1, coils[2])
# self.MC.setPin(self.BIN2, coils[3]) # self.MC.setPin(self.BIN2, coils[3])
# #
# return self.currentstep # return self.currentstep
# #
# def step(self, steps, direction, stepstyle): # def step(self, steps, direction, stepstyle):
# s_per_s = self.sec_per_step # s_per_s = self.sec_per_step
# lateststep = 0 # lateststep = 0
# #
# if (stepstyle == Adafruit_MotorHAT.INTERLEAVE): # if (stepstyle == Adafruit_MotorHAT.INTERLEAVE):
# s_per_s = s_per_s / 2.0 # s_per_s = s_per_s / 2.0
# if (stepstyle == Adafruit_MotorHAT.MICROSTEP): # if (stepstyle == Adafruit_MotorHAT.MICROSTEP):
# s_per_s /= self.MICROSTEPS # s_per_s /= self.MICROSTEPS
# steps *= self.MICROSTEPS # steps *= self.MICROSTEPS
# #
# print s_per_s, " sec per step" # print s_per_s, " sec per step"
# #
# for s in range(steps): # for s in range(steps):
# lateststep = self.oneStep(direction, stepstyle) # lateststep = self.oneStep(direction, stepstyle)
# time.sleep(s_per_s) # time.sleep(s_per_s)
# #
# if (stepstyle == Adafruit_MotorHAT.MICROSTEP): # if (stepstyle == Adafruit_MotorHAT.MICROSTEP):
# # this is an edge case, if we are in between full steps, lets just keep going # # this is an edge case, if we are in between full steps, lets just keep going
# # so we end on a full step # # so we end on a full step
# while (lateststep != 0) and (lateststep != self.MICROSTEPS): # while (lateststep != 0) and (lateststep != self.MICROSTEPS):
# lateststep = self.oneStep(dir, stepstyle) # lateststep = self.oneStep(dir, stepstyle)
# time.sleep(s_per_s) # time.sleep(s_per_s)
class dw_DCMotor: class dw_DCMotor:
def __init__(self, controller, num): def __init__(self, controller, num):
self.speed = 0 self.speed = 0
self.MC = controller self.MC = controller
self.motornum = num self.motornum = num
modepin = in1 = in2 = 0 modepin = in1 = in2 = 0
if (num == 0): if (num == 0):
@@ -185,93 +185,98 @@ class dw_DCMotor:
elif (num == 3): elif (num == 3):
in2 = 5 #phase in2 = 5 #phase
in1 = 4 #enable in1 = 4 #enable
elif (num == 4): elif (num == 4):
in2 = 0 #phase in2 = 0 #phase
in1 = 1 #enable in1 = 1 #enable
elif (num == 5): elif (num == 5):
in2 = 2 #phase in2 = 2 #phase
in1 = 3 #enable in1 = 3 #enable
else:
raise NameError('MotorHAT Motor must be between 1 and 6 inclusive')
else: self.PHpin = in2
raise NameError('MotorHAT Motor must be between 1 and 6 inclusive') self.ENpin = in1
self.PHpin = in1 # switch off
self.ENpin = in2 self.run(dw_MotorCONTROL.RELEASE, 0)
def setMotorSpeed(self, value): def setMotorSpeed(self, value):
if(value > 0) and (value <= 255): if(value > 0) and (value <= 255):
self.run(self, dw_MotorCONTROL.FORWARD, value) self.run(dw_MotorCONTROL.FORWARD, value)
if(value == 0): if(value == 0):
self.run(self, dw_MotorCONTROL.RELEASE, value) self.run(dw_MotorCONTROL.RELEASE, value)
if(value < 0) and (value >= -255): if(value < 0) and (value >= -255):
self.run(self, dw_MotorCONTROL.BACKWARD, abs(value)) self.run(dw_MotorCONTROL.BACKWARD, abs(value))
def run(self, command, speed = 0): def run(self, command, speed = 0):
if not self.MC: if not self.MC:
return return
if (command == dw_MotorCONTROL.FORWARD): if (command == dw_MotorCONTROL.FORWARD):
self.MC.setPin(self.PHpin, 0) self.MC.setPin(self.PHpin, 0)
self.MC._pwm.setPWM(self.ENpin, 0, speed*16) self.MC._pwm.setPWM(self.ENpin, 0, speed*16)
if (command == dw_MotorCONTROL.BACKWARD): if (command == dw_MotorCONTROL.BACKWARD):
self.MC.setPin(self.PHpin, 1) self.MC.setPin(self.PHpin, 1)
self.MC._pwm.setPWM(self.ENpin, 0, speed*16) self.MC._pwm.setPWM(self.ENpin, 0, speed*16)
if (command == dw_MotorCONTROL.RELEASE): if (command == dw_MotorCONTROL.RELEASE):
self.MC.setPin(self.PHpin, 0) self.MC.setPin(self.PHpin, 0)
self.MC.setPin(self.ENpin, 0) self.MC.setPin(self.ENpin, 0)
def setSpeed(self, speed): def setSpeed(self, speed):
if (speed < 0): if (speed < 0):
speed = 0 speed = 0
if (speed > 255): if (speed > 255):
speed = 255 speed = 255
self.MC._pwm.setPWM(self.ENpin, 0, speed*16) self.MC._pwm.setPWM(self.ENpin, 0, speed*16)
class dw_MotorCONTROL: class dw_MotorCONTROL:
FORWARD = 1 FORWARD = 1
BACKWARD = 2 BACKWARD = 2
BRAKE = 3 BRAKE = 3
RELEASE = 4 RELEASE = 4
SINGLE = 1 SINGLE = 1
DOUBLE = 2 DOUBLE = 2
INTERLEAVE = 3 INTERLEAVE = 3
MICROSTEP = 4 MICROSTEP = 4
ININ = 0 ININ = 0
PHASE = 1 PHASE = 1
def __init__(self, addr = 0x60, freq = 1600): def __init__(self, addr = 0x60, freq = 1600):
self._i2caddr = addr # default addr on HAT self._i2caddr = addr # default addr on HAT
self._frequency = freq # default @1600Hz PWM freq self._frequency = freq # default @1600Hz PWM freq
self.motors = [ dw_DCMotor(self, m) for m in range(6) ] # self.steppers = [ Adafruit_StepperMotor(self, 1), Adafruit_StepperMotor(self, 2) ]
# self.steppers = [ Adafruit_StepperMotor(self, 1), Adafruit_StepperMotor(self, 2) ] self._pwm = PWM(addr, debug=False)
self._pwm = PWM(addr, debug=False) self._pwm.setPWMFreq(self._frequency)
self._pwm.setPWMFreq(self._frequency) # Just gonna default to high for now
# Just gonna default to high for now GPIO.setmode(GPIO.BCM)
GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.OUT)
GPIO.setup(27, GPIO.OUT)
GPIO.setup(22, GPIO.OUT)
GPIO.output(17, GPIO.HIGH) GPIO.setwarnings(False)
GPIO.output(27, GPIO.HIGH)
GPIO.output(22, GPIO.HIGH) GPIO.setup(17, GPIO.OUT)
GPIO.setup(27, GPIO.OUT)
GPIO.setup(22, GPIO.OUT)
def setPin(self, pin, value): GPIO.output(17, GPIO.HIGH)
if (pin < 0) or (pin > 15): GPIO.output(27, GPIO.HIGH)
raise NameError('PWM pin must be between 0 and 15 inclusive') GPIO.output(22, GPIO.HIGH)
if (value != 0) and (value != 1):
raise NameError('Pin value must be 0 or 1!')
if (value == 0):
self._pwm.setPWM(pin, 0, 4096)
if (value == 1):
self._pwm.setPWM(pin, 4096, 0)
# def getStepper(self, steps, num): self.motors = [ dw_DCMotor(self, m) for m in range(6) ]
# if (num < 1) or (num > 2):
# raise NameError('MotorHAT Stepper must be between 1 and 2 inclusive')
# return self.steppers[num-1]
def getMotor(self, num): def setPin(self, pin, value):
if (num < 1) or (num > 6): if (pin < 0) or (pin > 15):
raise NameError('MotorHAT Motor must be between 1 and 6 inclusive') raise NameError('PWM pin must be between 0 and 15 inclusive')
return self.motors[num-1] if (value != 0) and (value != 1):
raise NameError('Pin value must be 0 or 1!')
if (value == 0):
self._pwm.setPWM(pin, 0, 4096)
if (value == 1):
self._pwm.setPWM(pin, 4096, 0)
def getMotor(self, num):
if (num < 1) or (num > 6):
raise NameError('MotorHAT Motor must be between 1 and 6 inclusive')
return self.motors[num-1]
def allOff(self):
for y in range(5):
self.motors[y].run(dw_MotorCONTROL.RELEASE, 0)

21
examples/640test.py Normal file
View File

@@ -0,0 +1,21 @@
import time
from dw640HAT import dw_MotorCONTROL, dw_DCMotor
dw = dw_MotorCONTROL( addr=0x60 )
m = dw.getMotor(1)
m.run(dw_MotorCONTROL.RELEASE)
time.sleep(5)
##time.sleep(10)
print "Set forward"
m.setMotorSpeed(255)
time.sleep(5)
print "stop"
m.setMotorSpeed(0)
time.sleep(5)
print "Set reverse"
m.setMotorSpeed(-255)
time.sleep(5)
print "stop"
m.run(dw_MotorCONTROL.RELEASE)

332
ez_setup.py
View File

@@ -1,332 +0,0 @@
#!/usr/bin/env python
"""Bootstrap setuptools installation
To use setuptools in your package's setup.py, include this
file in the same directory and add this to the top of your setup.py::
from ez_setup import use_setuptools
use_setuptools()
To require a specific version of setuptools, set a download
mirror, or use an alternate download directory, simply supply
the appropriate options to ``use_setuptools()``.
This file can also be run as a script to install or upgrade setuptools.
"""
import os
import shutil
import sys
import tempfile
import zipfile
import optparse
import subprocess
import platform
import textwrap
import contextlib
from distutils import log
try:
from site import USER_SITE
except ImportError:
USER_SITE = None
DEFAULT_VERSION = "3.5.1"
DEFAULT_URL = "https://pypi.python.org/packages/source/s/setuptools/"
def _python_cmd(*args):
"""
Return True if the command succeeded.
"""
args = (sys.executable,) + args
return subprocess.call(args) == 0
def _install(archive_filename, install_args=()):
with archive_context(archive_filename):
# installing
log.warn('Installing Setuptools')
if not _python_cmd('setup.py', 'install', *install_args):
log.warn('Something went wrong during the installation.')
log.warn('See the error message above.')
# exitcode will be 2
return 2
def _build_egg(egg, archive_filename, to_dir):
with archive_context(archive_filename):
# building an egg
log.warn('Building a Setuptools egg in %s', to_dir)
_python_cmd('setup.py', '-q', 'bdist_egg', '--dist-dir', to_dir)
# returning the result
log.warn(egg)
if not os.path.exists(egg):
raise IOError('Could not build the egg.')
def get_zip_class():
"""
Supplement ZipFile class to support context manager for Python 2.6
"""
class ContextualZipFile(zipfile.ZipFile):
def __enter__(self):
return self
def __exit__(self, type, value, traceback):
self.close
return zipfile.ZipFile if hasattr(zipfile.ZipFile, '__exit__') else \
ContextualZipFile
@contextlib.contextmanager
def archive_context(filename):
# extracting the archive
tmpdir = tempfile.mkdtemp()
log.warn('Extracting in %s', tmpdir)
old_wd = os.getcwd()
try:
os.chdir(tmpdir)
with get_zip_class()(filename) as archive:
archive.extractall()
# going in the directory
subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0])
os.chdir(subdir)
log.warn('Now working in %s', subdir)
yield
finally:
os.chdir(old_wd)
shutil.rmtree(tmpdir)
def _do_download(version, download_base, to_dir, download_delay):
egg = os.path.join(to_dir, 'setuptools-%s-py%d.%d.egg'
% (version, sys.version_info[0], sys.version_info[1]))
if not os.path.exists(egg):
archive = download_setuptools(version, download_base,
to_dir, download_delay)
_build_egg(egg, archive, to_dir)
sys.path.insert(0, egg)
# Remove previously-imported pkg_resources if present (see
# https://bitbucket.org/pypa/setuptools/pull-request/7/ for details).
if 'pkg_resources' in sys.modules:
del sys.modules['pkg_resources']
import setuptools
setuptools.bootstrap_install_from = egg
def use_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL,
to_dir=os.curdir, download_delay=15):
to_dir = os.path.abspath(to_dir)
rep_modules = 'pkg_resources', 'setuptools'
imported = set(sys.modules).intersection(rep_modules)
try:
import pkg_resources
except ImportError:
return _do_download(version, download_base, to_dir, download_delay)
try:
pkg_resources.require("setuptools>=" + version)
return
except pkg_resources.DistributionNotFound:
return _do_download(version, download_base, to_dir, download_delay)
except pkg_resources.VersionConflict as VC_err:
if imported:
msg = textwrap.dedent("""
The required version of setuptools (>={version}) is not available,
and can't be installed while this script is running. Please
install a more recent version first, using
'easy_install -U setuptools'.
(Currently using {VC_err.args[0]!r})
""").format(VC_err=VC_err, version=version)
sys.stderr.write(msg)
sys.exit(2)
# otherwise, reload ok
del pkg_resources, sys.modules['pkg_resources']
return _do_download(version, download_base, to_dir, download_delay)
def _clean_check(cmd, target):
"""
Run the command to download target. If the command fails, clean up before
re-raising the error.
"""
try:
subprocess.check_call(cmd)
except subprocess.CalledProcessError:
if os.access(target, os.F_OK):
os.unlink(target)
raise
def download_file_powershell(url, target):
"""
Download the file at url to target using Powershell (which will validate
trust). Raise an exception if the command cannot complete.
"""
target = os.path.abspath(target)
cmd = [
'powershell',
'-Command',
"(new-object System.Net.WebClient).DownloadFile(%(url)r, %(target)r)" % vars(),
]
_clean_check(cmd, target)
def has_powershell():
if platform.system() != 'Windows':
return False
cmd = ['powershell', '-Command', 'echo test']
devnull = open(os.path.devnull, 'wb')
try:
try:
subprocess.check_call(cmd, stdout=devnull, stderr=devnull)
except Exception:
return False
finally:
devnull.close()
return True
download_file_powershell.viable = has_powershell
def download_file_curl(url, target):
cmd = ['curl', url, '--silent', '--output', target]
_clean_check(cmd, target)
def has_curl():
cmd = ['curl', '--version']
devnull = open(os.path.devnull, 'wb')
try:
try:
subprocess.check_call(cmd, stdout=devnull, stderr=devnull)
except Exception:
return False
finally:
devnull.close()
return True
download_file_curl.viable = has_curl
def download_file_wget(url, target):
cmd = ['wget', url, '--quiet', '--output-document', target]
_clean_check(cmd, target)
def has_wget():
cmd = ['wget', '--version']
devnull = open(os.path.devnull, 'wb')
try:
try:
subprocess.check_call(cmd, stdout=devnull, stderr=devnull)
except Exception:
return False
finally:
devnull.close()
return True
download_file_wget.viable = has_wget
def download_file_insecure(url, target):
"""
Use Python to download the file, even though it cannot authenticate the
connection.
"""
try:
from urllib.request import urlopen
except ImportError:
from urllib2 import urlopen
src = dst = None
try:
src = urlopen(url)
# Read/write all in one block, so we don't create a corrupt file
# if the download is interrupted.
data = src.read()
dst = open(target, "wb")
dst.write(data)
finally:
if src:
src.close()
if dst:
dst.close()
download_file_insecure.viable = lambda: True
def get_best_downloader():
downloaders = [
download_file_powershell,
download_file_curl,
download_file_wget,
download_file_insecure,
]
for dl in downloaders:
if dl.viable():
return dl
def download_setuptools(version=DEFAULT_VERSION, download_base=DEFAULT_URL,
to_dir=os.curdir, delay=15, downloader_factory=get_best_downloader):
"""
Download setuptools from a specified location and return its filename
`version` should be a valid setuptools version number that is available
as an egg for download under the `download_base` URL (which should end
with a '/'). `to_dir` is the directory where the egg will be downloaded.
`delay` is the number of seconds to pause before an actual download
attempt.
``downloader_factory`` should be a function taking no arguments and
returning a function for downloading a URL to a target.
"""
# making sure we use the absolute path
to_dir = os.path.abspath(to_dir)
zip_name = "setuptools-%s.zip" % version
url = download_base + zip_name
saveto = os.path.join(to_dir, zip_name)
if not os.path.exists(saveto): # Avoid repeated downloads
log.warn("Downloading %s", url)
downloader = downloader_factory()
downloader(url, saveto)
return os.path.realpath(saveto)
def _build_install_args(options):
"""
Build the arguments to 'python setup.py install' on the setuptools package
"""
return ['--user'] if options.user_install else []
def _parse_args():
"""
Parse the command line for options
"""
parser = optparse.OptionParser()
parser.add_option(
'--user', dest='user_install', action='store_true', default=False,
help='install in user site package (requires Python 2.6 or later)')
parser.add_option(
'--download-base', dest='download_base', metavar="URL",
default=DEFAULT_URL,
help='alternative URL from where to download the setuptools package')
parser.add_option(
'--insecure', dest='downloader_factory', action='store_const',
const=lambda: download_file_insecure, default=get_best_downloader,
help='Use internal, non-validating downloader'
)
parser.add_option(
'--version', help="Specify which version to download",
default=DEFAULT_VERSION,
)
options, args = parser.parse_args()
# positional arguments are ignored
return options
def main():
"""Install or upgrade setuptools and EasyInstall"""
options = _parse_args()
archive = download_setuptools(
version=options.version,
download_base=options.download_base,
downloader_factory=options.downloader_factory,
)
return _install(archive, _build_install_args(options))
if __name__ == '__main__':
sys.exit(main())

14
setup.py
View File

@@ -1,14 +0,0 @@
from ez_setup import use_setuptools
use_setuptools()
from setuptools import setup, find_packages
setup(name = 'Adafruit_MotorHAT',
version = '1.3.0',
author = 'Limor Fried',
author_email = 'support@adafruit.com',
description = 'Library for Adafruit Motor HAT',
license = 'MIT',
url = 'https://github.com/adafruit/Adafruit_Python_MotorHAT/',
dependency_links = ['https://github.com/adafruit/Adafruit_Python_GPIO/tarball/master#egg=Adafruit-GPIO-0.7'],
install_requires = ['Adafruit-GPIO>=0.7'],
packages = find_packages())