From: sandyjmacdonald <sandyjmacdonald@gmail.com>
Date: Mon, 24 Feb 2020 13:46:54 +0000 (+0000)
Subject: Python 3-related fixes, moving to pip fonts, fixing Astral errors.
X-Git-Url: https://zdv2.bktei.com/gitweb/EVA-2020-02-2.git/commitdiff_plain/20442c9a53edb05b925faa07eb8360bd46442978?hp=-c

Python 3-related fixes, moving to pip fonts, fixing Astral errors.
---

20442c9a53edb05b925faa07eb8360bd46442978
diff --git a/examples/adc.py b/examples/adc.py
index 82bda41..a345d23 100755
--- a/examples/adc.py
+++ b/examples/adc.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import time
 from enviroplus import gas
diff --git a/examples/all-in-one-no-pm.py b/examples/all-in-one-no-pm.py
index 6bb6873..db1ca8c 100755
--- a/examples/all-in-one-no-pm.py
+++ b/examples/all-in-one-no-pm.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import time
 import colorsys
@@ -18,6 +18,7 @@ from subprocess import PIPE, Popen
 from PIL import Image
 from PIL import ImageDraw
 from PIL import ImageFont
+from fonts.ttf import RobotoMedium as UserFont
 import logging
 
 logging.basicConfig(
@@ -52,7 +53,8 @@ HEIGHT = st7735.height
 img = Image.new('RGB', (WIDTH, HEIGHT), color=(0, 0, 0))
 draw = ImageDraw.Draw(img)
 path = os.path.dirname(os.path.realpath(__file__))
-font = ImageFont.truetype(path + "/fonts/Asap/Asap-Bold.ttf", 20)
+font_size = 20
+font = ImageFont.truetype(UserFont, FontSize)
 
 message = ""
 
@@ -96,7 +98,7 @@ def get_cpu_temperature():
 
 # Tuning factor for compensation. Decrease this number to adjust the
 # temperature down, and increase to adjust up
-factor = 0.8
+factor = 2.25
 
 cpu_temps = [get_cpu_temperature()] * 5
 
diff --git a/examples/all-in-one.py b/examples/all-in-one.py
index 03e4d58..c0423e6 100755
--- a/examples/all-in-one.py
+++ b/examples/all-in-one.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import time
 import colorsys
@@ -19,6 +19,7 @@ from subprocess import PIPE, Popen
 from PIL import Image
 from PIL import ImageDraw
 from PIL import ImageFont
+from fonts.ttf import RobotoMedium as UserFont
 import logging
 
 logging.basicConfig(
@@ -57,8 +58,8 @@ HEIGHT = st7735.height
 # Set up canvas and font
 img = Image.new('RGB', (WIDTH, HEIGHT), color=(0, 0, 0))
 draw = ImageDraw.Draw(img)
-path = os.path.dirname(os.path.realpath(__file__))
-font = ImageFont.truetype(path + "/fonts/Asap/Asap-Bold.ttf", 20)
+font_size = 20
+font = ImageFont.truetype(UserFont, font_size)
 
 message = ""
 
@@ -102,7 +103,7 @@ def get_cpu_temperature():
 
 # Tuning factor for compensation. Decrease this number to adjust the
 # temperature down, and increase to adjust up
-factor = 0.8
+factor = 2.25
 
 cpu_temps = [get_cpu_temperature()] * 5
 
diff --git a/examples/combined.py b/examples/combined.py
old mode 100644
new mode 100755
index e863de3..43668a5
--- a/examples/combined.py
+++ b/examples/combined.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import time
 import colorsys
@@ -19,6 +19,7 @@ from subprocess import PIPE, Popen
 from PIL import Image
 from PIL import ImageDraw
 from PIL import ImageFont
+from fonts.ttf import RobotoMedium as UserFont
 import logging
 
 logging.basicConfig(
@@ -57,9 +58,10 @@ HEIGHT = st7735.height
 # Set up canvas and font
 img = Image.new('RGB', (WIDTH, HEIGHT), color=(0, 0, 0))
 draw = ImageDraw.Draw(img)
-path = os.path.dirname(os.path.realpath(__file__))
-font = ImageFont.truetype(path + "/fonts/Asap/Asap-Bold.ttf", 20)
-smallfont = ImageFont.truetype(path + "/fonts/Asap/Asap-Bold.ttf", 10)
+font_size_small = 10
+font_size_large = 20
+font = ImageFont.truetype(UserFont, font_size_large)
+smallfont = ImageFont.truetype(UserFont, font_size_small)
 x_offset = 2
 y_offset = 2
 
@@ -166,7 +168,7 @@ def display_everything():
     draw.rectangle((0, 0, WIDTH, HEIGHT), (0, 0, 0))
     column_count = 2
     row_count = (len(variables)/column_count)
-    for i in xrange(len(variables)):
+    for i in range(len(variables)):
         variable = variables[i]
         data_value = values[variable][-1]
         unit = units[i]
@@ -175,7 +177,7 @@ def display_everything():
         message = "{}: {:.1f} {}".format(variable[:4], data_value, unit)
         lim = limits[i]
         rgb = palette[0]
-        for j in xrange(len(lim)):
+        for j in range(len(lim)):
             if data_value > lim[j]:
                 rgb = palette[j+1]
         draw.text((x, y), message, font=smallfont, fill=rgb)
@@ -192,7 +194,7 @@ def get_cpu_temperature():
 
 # Tuning factor for compensation. Decrease this number to adjust the
 # temperature down, and increase to adjust up
-factor = 1.95
+factor = 2.25
 
 cpu_temps = [get_cpu_temperature()] * 5
 
diff --git a/examples/compensated-temperature.py b/examples/compensated-temperature.py
index 74b6bab..b648f57 100755
--- a/examples/compensated-temperature.py
+++ b/examples/compensated-temperature.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import time
 from bme280 import BME280
@@ -38,7 +38,7 @@ def get_cpu_temperature():
 
 # Tuning factor for compensation. Decrease this number to adjust the
 # temperature down, and increase to adjust up
-factor = 0.8
+factor = 2.25
 
 cpu_temps = [get_cpu_temperature()] * 5
 
diff --git a/examples/fonts/Asap/Asap-Bold.ttf b/examples/fonts/Asap/Asap-Bold.ttf
deleted file mode 100644
index 52a14e5..0000000
Binary files a/examples/fonts/Asap/Asap-Bold.ttf and /dev/null differ
diff --git a/examples/fonts/Asap/Asap-BoldItalic.ttf b/examples/fonts/Asap/Asap-BoldItalic.ttf
deleted file mode 100644
index df29023..0000000
Binary files a/examples/fonts/Asap/Asap-BoldItalic.ttf and /dev/null differ
diff --git a/examples/fonts/Asap/Asap-Italic.ttf b/examples/fonts/Asap/Asap-Italic.ttf
deleted file mode 100644
index b07a0bc..0000000
Binary files a/examples/fonts/Asap/Asap-Italic.ttf and /dev/null differ
diff --git a/examples/fonts/Asap/Asap-Medium.ttf b/examples/fonts/Asap/Asap-Medium.ttf
deleted file mode 100644
index 81ef310..0000000
Binary files a/examples/fonts/Asap/Asap-Medium.ttf and /dev/null differ
diff --git a/examples/fonts/Asap/Asap-MediumItalic.ttf b/examples/fonts/Asap/Asap-MediumItalic.ttf
deleted file mode 100644
index 6f8d906..0000000
Binary files a/examples/fonts/Asap/Asap-MediumItalic.ttf and /dev/null differ
diff --git a/examples/fonts/Asap/Asap-Regular.ttf b/examples/fonts/Asap/Asap-Regular.ttf
deleted file mode 100644
index af00196..0000000
Binary files a/examples/fonts/Asap/Asap-Regular.ttf and /dev/null differ
diff --git a/examples/fonts/Asap/Asap-SemiBold.ttf b/examples/fonts/Asap/Asap-SemiBold.ttf
deleted file mode 100644
index 5328f3f..0000000
Binary files a/examples/fonts/Asap/Asap-SemiBold.ttf and /dev/null differ
diff --git a/examples/fonts/Asap/Asap-SemiBoldItalic.ttf b/examples/fonts/Asap/Asap-SemiBoldItalic.ttf
deleted file mode 100644
index 6415ef2..0000000
Binary files a/examples/fonts/Asap/Asap-SemiBoldItalic.ttf and /dev/null differ
diff --git a/examples/fonts/Asap/OFL.txt b/examples/fonts/Asap/OFL.txt
deleted file mode 100644
index ad56d30..0000000
--- a/examples/fonts/Asap/OFL.txt
+++ /dev/null
@@ -1,93 +0,0 @@
-Copyright 2016 The Asap Project Authors (omnibus.type@gmail.com)
-
-This Font Software is licensed under the SIL Open Font License, Version 1.1.
-This license is copied below, and is also available with a FAQ at:
-http://scripts.sil.org/OFL
-
-
------------------------------------------------------------
-SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
------------------------------------------------------------
-
-PREAMBLE
-The goals of the Open Font License (OFL) are to stimulate worldwide
-development of collaborative font projects, to support the font creation
-efforts of academic and linguistic communities, and to provide a free and
-open framework in which fonts may be shared and improved in partnership
-with others.
-
-The OFL allows the licensed fonts to be used, studied, modified and
-redistributed freely as long as they are not sold by themselves. The
-fonts, including any derivative works, can be bundled, embedded, 
-redistributed and/or sold with any software provided that any reserved
-names are not used by derivative works. The fonts and derivatives,
-however, cannot be released under any other type of license. The
-requirement for fonts to remain under this license does not apply
-to any document created using the fonts or their derivatives.
-
-DEFINITIONS
-"Font Software" refers to the set of files released by the Copyright
-Holder(s) under this license and clearly marked as such. This may
-include source files, build scripts and documentation.
-
-"Reserved Font Name" refers to any names specified as such after the
-copyright statement(s).
-
-"Original Version" refers to the collection of Font Software components as
-distributed by the Copyright Holder(s).
-
-"Modified Version" refers to any derivative made by adding to, deleting,
-or substituting -- in part or in whole -- any of the components of the
-Original Version, by changing formats or by porting the Font Software to a
-new environment.
-
-"Author" refers to any designer, engineer, programmer, technical
-writer or other person who contributed to the Font Software.
-
-PERMISSION & CONDITIONS
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of the Font Software, to use, study, copy, merge, embed, modify,
-redistribute, and sell modified and unmodified copies of the Font
-Software, subject to the following conditions:
-
-1) Neither the Font Software nor any of its individual components,
-in Original or Modified Versions, may be sold by itself.
-
-2) Original or Modified Versions of the Font Software may be bundled,
-redistributed and/or sold with any software, provided that each copy
-contains the above copyright notice and this license. These can be
-included either as stand-alone text files, human-readable headers or
-in the appropriate machine-readable metadata fields within text or
-binary files as long as those fields can be easily viewed by the user.
-
-3) No Modified Version of the Font Software may use the Reserved Font
-Name(s) unless explicit written permission is granted by the corresponding
-Copyright Holder. This restriction only applies to the primary font name as
-presented to the users.
-
-4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
-Software shall not be used to promote, endorse or advertise any
-Modified Version, except to acknowledge the contribution(s) of the
-Copyright Holder(s) and the Author(s) or with their explicit written
-permission.
-
-5) The Font Software, modified or unmodified, in part or in whole,
-must be distributed entirely under this license, and must not be
-distributed under any other license. The requirement for fonts to
-remain under this license does not apply to any document created
-using the Font Software.
-
-TERMINATION
-This license becomes null and void if any of the above conditions are
-not met.
-
-DISCLAIMER
-THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
-OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
-COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
-DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
-OTHER DEALINGS IN THE FONT SOFTWARE.
diff --git a/examples/gas.py b/examples/gas.py
index 2f84944..5d72cb9 100755
--- a/examples/gas.py
+++ b/examples/gas.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import time
 from enviroplus import gas
diff --git a/examples/lcd.py b/examples/lcd.py
index 7e50c94..10413b9 100755
--- a/examples/lcd.py
+++ b/examples/lcd.py
@@ -1,7 +1,8 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import ST7735
 from PIL import Image, ImageDraw, ImageFont
+from fonts.ttf import RobotoMedium as UserFont
 import logging
 
 logging.basicConfig(
@@ -38,7 +39,7 @@ draw = ImageDraw.Draw(img)
 
 # Text settings.
 font_size = 25
-font = ImageFont.truetype("fonts/Asap/Asap-Bold.ttf", font_size)
+font = ImageFont.truetype(UserFont, font_size)
 text_colour = (255, 255, 255)
 back_colour = (0, 170, 170)
 
diff --git a/examples/light.py b/examples/light.py
index b18a78b..db61e6a 100755
--- a/examples/light.py
+++ b/examples/light.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import time
 import logging
diff --git a/examples/luftdaten.py b/examples/luftdaten.py
index 9995914..d2d6562 100755
--- a/examples/luftdaten.py
+++ b/examples/luftdaten.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import requests
 import ST7735
@@ -7,6 +7,7 @@ from bme280 import BME280
 from pms5003 import PMS5003, ReadTimeoutError
 from subprocess import PIPE, Popen, check_output
 from PIL import Image, ImageDraw, ImageFont
+from fonts.ttf import RobotoMedium as UserFont
 
 try:
     from smbus2 import SMBus
@@ -74,7 +75,6 @@ def read_values():
 def get_cpu_temperature():
     process = Popen(['vcgencmd', 'measure_temp'], stdout=PIPE, universal_newlines=True)
     output, _error = process.communicate()
-    output = output.decode()
     return float(output[output.index('=') + 1:output.rindex("'")])
 
 
@@ -150,7 +150,7 @@ def send_to_luftdaten(values, id):
 
 
 # Compensation factor for temperature
-comp_factor = 1.2
+comp_factor = 2.25
 
 # Raspberry Pi ID to send to Luftdaten
 id = "raspi-" + get_serial_number()
@@ -161,7 +161,7 @@ HEIGHT = disp.height
 
 # Text settings
 font_size = 16
-font = ImageFont.truetype("fonts/Asap/Asap-Bold.ttf", font_size)
+font = ImageFont.truetype(UserFont, font_size)
 
 # Display Raspberry Pi serial and Wi-Fi status
 print("Raspberry Pi serial: {}".format(get_serial_number()))
diff --git a/examples/particulates.py b/examples/particulates.py
index 9aa9c37..28bb88e 100755
--- a/examples/particulates.py
+++ b/examples/particulates.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import time
 from pms5003 import PMS5003, ReadTimeoutError
diff --git a/examples/weather-and-light.py b/examples/weather-and-light.py
old mode 100644
new mode 100755
index c741764..fde1d96
--- a/examples/weather-and-light.py
+++ b/examples/weather-and-light.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 
+import os
 import time
 import numpy
 import colorsys
@@ -11,7 +12,8 @@ from bme280 import BME280
 from ltr559 import LTR559
 
 import pytz
-from astral import Astral
+from astral.geocoder import database, lookup
+from astral.sun import sun
 from datetime import datetime, timedelta
 
 try:
@@ -81,8 +83,7 @@ def sun_moon_time(dt, city_name, time_zone):
     """Calculate the progress through the current sun/moon period (i.e day or
        night) from the last sunrise or sunset, given a datetime object 't'."""
 
-    a = Astral()
-    city = a[city_name]
+    city = lookup(city_name, database())
 
     # Datetime objects for yesterday, today, tomorrow
     today = dt.date()
@@ -91,14 +92,14 @@ def sun_moon_time(dt, city_name, time_zone):
     tomorrow = today + timedelta(1)
 
     # Sun objects for yesterfay, today, tomorrow
-    sun_yesterday = city.sun(date=yesterday, local=True)
-    sun = city.sun(date=today, local=True)
-    sun_tomorrow = city.sun(date=tomorrow, local=True)
+    sun_yesterday = sun(city.observer, date=yesterday)
+    sun_today = sun(city.observer, date=today)
+    sun_tomorrow = sun(city.observer, date=tomorrow)
 
     # Work out sunset yesterday, sunrise/sunset today, and sunrise tomorrow
     sunset_yesterday = sun_yesterday["sunset"]
-    sunrise_today = sun["sunrise"]
-    sunset_today = sun["sunset"]
+    sunrise_today = sun_today["sunrise"]
+    sunset_today = sun_today["sunset"]
     sunrise_tomorrow = sun_tomorrow["sunrise"]
 
     # Work out lengths of day or night period and progress through period
@@ -324,8 +325,8 @@ dt = datetime.now()
 bus = SMBus(1)
 bme280 = BME280(i2c_dev=bus)
 
-min_temp = bme280.get_temperature()
-max_temp = bme280.get_temperature()
+min_temp = None
+max_temp = None
 
 factor = 2.25
 cpu_temps = [get_cpu_temperature()] * 5
@@ -340,13 +341,17 @@ num_vals = 1000
 interval = 1
 trend = "-"
 
+# Keep track of time elapsed
+start_time = time.time()
+
 while True:
+    path = os.path.dirname(os.path.realpath(__file__))
     dt = datetime.now()
-#    dt += timedelta(minutes=5)
     progress, period, day = sun_moon_time(dt, city_name, time_zone)
     background = draw_background(progress, period, day)
 
     # Time.
+    time_elapsed = time.time() - start_time
     date_string = dt.strftime("%d %b %y").lstrip('0')
     time_string = dt.strftime("%H:%M")
     img = overlay_text(background, (0 + margin, 0 + margin), time_string, font_lg)
@@ -361,17 +366,25 @@ while True:
     avg_cpu_temp = sum(cpu_temps) / float(len(cpu_temps))
     corr_temperature = temperature - ((avg_cpu_temp - temperature) / factor)
 
-    if corr_temperature < min_temp:
-        min_temp = corr_temperature
-    elif corr_temperature > max_temp:
-        max_temp = corr_temperature
+    if time_elapsed > 30:
+        if min_temp is not None and max_temp is not None:
+            if corr_temperature < min_temp:
+                min_temp = corr_temperature
+            elif corr_temperature > max_temp:
+                max_temp = corr_temperature
+        else:
+            min_temp = corr_temperature
+            max_temp = corr_temperature
 
     temp_string = f"{corr_temperature:.0f}°C"
     img = overlay_text(img, (68, 18), temp_string, font_lg, align_right=True)
     spacing = font_lg.getsize(temp_string)[1] + 1
-    range_string = f"{min_temp:.0f}-{max_temp:.0f}"
+    if min_temp is not None and max_temp is not None:
+        range_string = f"{min_temp:.0f}-{max_temp:.0f}"
+    else:
+        range_string = "------"
     img = overlay_text(img, (68, 18 + spacing), range_string, font_sm, align_right=True, rectangle=True)
-    temp_icon = Image.open("icons/temperature.png")
+    temp_icon = Image.open(path + "/icons/temperature.png")
     img.paste(temp_icon, (margin, 18), mask=temp_icon)
 
     # Humidity
@@ -382,7 +395,7 @@ while True:
     spacing = font_lg.getsize(humidity_string)[1] + 1
     humidity_desc = describe_humidity(corr_humidity).upper()
     img = overlay_text(img, (68, 48 + spacing), humidity_desc, font_sm, align_right=True, rectangle=True)
-    humidity_icon = Image.open("icons/humidity-" + humidity_desc.lower() + ".png")
+    humidity_icon = Image.open(path + "/icons/humidity-" + humidity_desc.lower() + ".png")
     img.paste(humidity_icon, (margin, 48), mask=humidity_icon)
 
     # Light
@@ -392,7 +405,7 @@ while True:
     spacing = font_lg.getsize(light_string.replace(",", ""))[1] + 1
     light_desc = describe_light(light).upper()
     img = overlay_text(img, (WIDTH - margin - 1, 18 + spacing), light_desc, font_sm, align_right=True, rectangle=True)
-    light_icon = Image.open("icons/bulb-" + light_desc.lower() +  ".png")
+    light_icon = Image.open(path + "/icons/bulb-" + light_desc.lower() +  ".png")
     img.paste(humidity_icon, (80, 18), mask=light_icon)
 
     # Pressure
@@ -404,7 +417,7 @@ while True:
     pressure_desc = describe_pressure(mean_pressure).upper()
     spacing = font_lg.getsize(pressure_string.replace(",", ""))[1] + 1
     img = overlay_text(img, (WIDTH - margin - 1, 48 + spacing), pressure_desc, font_sm, align_right=True, rectangle=True)
-    pressure_icon = Image.open("icons/weather-" + pressure_desc.lower() +  ".png")
+    pressure_icon = Image.open(path + "/icons/weather-" + pressure_desc.lower() +  ".png")
     img.paste(pressure_icon, (80, 48), mask=pressure_icon)
 
     # Display image
diff --git a/examples/weather.py b/examples/weather.py
index 5036021..66f18e0 100755
--- a/examples/weather.py
+++ b/examples/weather.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import time
 from bme280 import BME280
diff --git a/library/setup.cfg b/library/setup.cfg
index ed7cef7..9375d3c 100644
--- a/library/setup.cfg
+++ b/library/setup.cfg
@@ -33,6 +33,10 @@ install_requires =
 	ltr559
 	st7735
 	ads1015
+        fonts
+        font-roboto
+        astral
+        pytz
 
 [flake8]
 exclude =
diff --git a/library/setup.py b/library/setup.py
index 08ebdc5..784db51 100755
--- a/library/setup.py
+++ b/library/setup.py
@@ -32,5 +32,5 @@ if parse_version(__version__) < minimum_version:
 
 setup(
     packages=['enviroplus'],
-    install_requires=['setuptools>={}'.format(minimum_version), 'pimoroni-bme280', 'pms5003', 'ltr559', 'st7735', 'ads1015']
+    install_requires=['setuptools>={}'.format(minimum_version), 'pimoroni-bme280', 'pms5003', 'ltr559', 'st7735', 'ads1015', 'fonts', 'font-roboto', 'astral', 'pytz']
 )