Secrets Cleanup: C and E

CLUE/CLUE_Rock_Paper_Scissors/advanced/code.py

@@ -62,18 +62,10 @@ from rps_crypto import bytesPad, strUnpad, generateOTPadKey, \
 from rps_display import RPSDisplay, blankScreen
 
 
-# Look for our name in secrets.py file if present
+# Look for our name in settings.toml file if present
-ble_name = None
+ble_name = os.getenv("rps_name", os.getenv("ble_name"))
-try:
+if ble_name is None:
-    from secrets import secrets
+    print("INFO: No rps_name or ble_name entry found in settings.toml")
-    ble_name = secrets.get("rps_name")
-    if ble_name is None:
-        ble_name = secrets.get("ble_name")
-        if ble_name is None:
-            print("INFO: No rps_name or ble_name entry found in secrets dict")
-except ImportError:
-    pass   # File is optional, reaching here is not a program error
-
 
 debug = 1
 
@@ -228,7 +220,7 @@ LAST_ACK_TIME_S = 1.5
 # Intro screen with audio
 rps_display.introductionScreen()
 
-# Enable the Bluetooth LE radio and set player's name (from secrets.py)
+# Enable the Bluetooth LE radio and set player's name (from settings.toml)
 ble = BLERadio()
 if ble_name is not None:
     ble.name = ble_name

Cheekmate/CircuitPython/code.py

@@ -6,10 +6,9 @@
 CHEEKMATE: secret message receiver using WiFi, Adafruit IO and a haptic
 buzzer. Periodically polls an Adafruit IO dashboard, converting new messages
 to Morse code.
-
-secrets.py file must be present and contain WiFi & Adafruit IO credentials.
 """
 
+from os import getenv
 import gc
 import time
 import ssl
@@ -23,11 +22,20 @@ import supervisor
 import wifi
 from adafruit_io.adafruit_io import IO_HTTP
 
-try:
+# Get WiFi details and Adafruit IO keys, ensure these are setup in settings.toml
-    from secrets import secrets
+# (visit io.adafruit.com if you need to create an account, or if you need your Adafruit IO key.)
-except ImportError:
+ssid = getenv("CIRCUITPY_WIFI_SSID")
-    print("WiFi secrets are kept in secrets.py, please add them there!")
+password = getenv("CIRCUITPY_WIFI_PASSWORD")
-    raise
+aio_username = getenv("ADAFRUIT_AIO_USERNAME")
+aio_key = getenv("ADAFRUIT_AIO_KEY")
+
+if None in [ssid, password, aio_username, aio_key]:
+    raise RuntimeError(
+        "WiFi and Adafruit IO settings are kept in settings.toml, "
+        "please add them there. The settings file must contain "
+        "'CIRCUITPY_WIFI_SSID', 'CIRCUITPY_WIFI_PASSWORD', "
+        "'ADAFRUIT_AIO_USERNAME' and 'ADAFRUIT_AIO_KEY' at a minimum."
+    )
 
 # CONFIGURABLE GLOBALS -----------------------------------------------------
 
@@ -154,10 +162,10 @@ i2c.unlock()
 # WIFI CONNECT -------------------------------------------------------------
 
 try:
-    print("Connecting to {}...".format(secrets["ssid"]), end="")
+    print(f"Connecting to {ssid}...")
-    wifi.radio.connect(secrets["ssid"], secrets["password"])
+    wifi.radio.connect(ssid, password)
     print("OK")
-    print("IP:", wifi.radio.ipv4_address)
+    print(f"IP: {wifi.radio.ipv4_address}")
 
     pool = socketpool.SocketPool(wifi.radio)
     requests = adafruit_requests.Session(pool, ssl.create_default_context())
@@ -169,8 +177,6 @@ except Exception as error:  # pylint: disable=broad-except
 
 # ADAFRUIT IO INITIALIZATION -----------------------------------------------
 
-aio_username = secrets["aio_username"]
-aio_key = secrets["aio_key"]
 io = IO_HTTP(aio_username, aio_key, requests)
 
 # SUCCESSFUL STARTUP, PROCEED INTO MAIN LOOP -------------------------------

CircuitPython_WeatherCloud/code.py

@@ -2,6 +2,7 @@
 #
 # SPDX-License-Identifier: MIT
 
+from os import getenv
 import time
 import random
 import audioio
@@ -20,25 +21,29 @@ print("ESP32 Open Weather API demo")
 button = digitalio.DigitalInOut(board.A1)
 button.switch_to_input(pull=digitalio.Pull.UP)
 
-wave_file = open("sound/Rain.wav", "rb")
+with open("sound/Rain.wav", "rb") as wave_file:
-wave = audiocore.WaveFile(wave_file)
+    wave = audiocore.WaveFile(wave_file)
 audio = audioio.AudioOut(board.A0)
 
+# Get WiFi details, ensure these are setup in settings.toml
+ssid = getenv("CIRCUITPY_WIFI_SSID")
+password = getenv("CIRCUITPY_WIFI_PASSWORD")
 
-# Get wifi details and more from a secrets.py file
+if None in [ssid, password]:
-try:
+    raise RuntimeError(
-    from secrets import secrets
+        "WiFi settings are kept in settings.toml, "
-except ImportError:
+        "please add them there. The settings file must contain "
-    print("WiFi secrets are kept in secrets.py, please add them there!")
+        "'CIRCUITPY_WIFI_SSID', 'CIRCUITPY_WIFI_PASSWORD', "
-    raise
+        "at a minimum."
+    )
 
 # Use cityname, country code where countrycode is ISO3166 format.
 # E.g. "New York, US" or "London, GB"
-LOCATION = secrets['timezone']
+LOCATION = getenv('timezone')
 
 # Set up where we'll be fetching data from
-DATA_SOURCE = "http://api.openweathermap.org/data/2.5/weather?q="+secrets['timezone']
+DATA_SOURCE = "http://api.openweathermap.org/data/2.5/weather?q="+LOCATION
-DATA_SOURCE += "&appid="+secrets['openweather_token']
+DATA_SOURCE += "&appid="+getenv('openweather_token')
 
 # If you are using a board with pre-defined ESP32 Pins:
 esp32_cs = DigitalInOut(board.ESP_CS)
@@ -47,8 +52,8 @@ esp32_reset = DigitalInOut(board.ESP_RESET)
 
 spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
 esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)
-status_light = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.2)  # Uncomment  for Most Boards
+status_pixel = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.2)  # Uncomment  for Most Boards
-wifi = adafruit_esp32spi_wifimanager.ESPSPI_WiFiManager(esp, secrets, status_light)
+wifi = adafruit_esp32spi_wifimanager.WiFiManager(esp, ssid, password, status_pixel=status_pixel)
 pixels = neopixel.NeoPixel(board.D2, 150, brightness=1.0, auto_write=False)
 pixels.fill(0x050505)
 pixels.show()
@@ -134,18 +139,18 @@ while True:
             raining = snowing = thundering = has_sound = False
             if weather_type == 'Sunny':
                 palette = sunny_palette
-                wave_file = open("sound/Clear.wav", "rb")
+                with open("sound/Clear.wav", "rb") as wave_file:
-                wave = audiocore.WaveFile(wave_file)
+                    wave = audiocore.WaveFile(wave_file)
                 has_sound = True
             if weather_type == 'Clouds':
                 palette = cloudy_palette
-                wave_file = open("sound/Clouds.wav", "rb")
+                with open("sound/Clouds.wav", "rb") as wave_file:
-                wave = audiocore.WaveFile(wave_file)
+                    wave = audiocore.WaveFile(wave_file)
                 has_sound = True
             if weather_type == 'Rain':
                 palette = cloudy_palette
-                wave_file = open("sound/Rain.wav", "rb")
+                with open("sound/Rain.wav", "rb") as wave_file:
-                wave = audiocore.WaveFile(wave_file)
+                    wave = audiocore.WaveFile(wave_file)
                 raining = True
                 has_sound = True
             if weather_type == 'Thunderstorm':
@@ -156,8 +161,8 @@ while True:
                 next_bolt_time = time.monotonic() + random.randint(1, 5)
             if weather_type == 'Snow':
                 palette = cloudy_palette
-                wave_file = open("sound/Snow.wav", "rb")
+                with open("sound/Snow.wav", "rb") as wave_file:
-                wave = audiocore.WaveFile(wave_file)
+                    wave = audiocore.WaveFile(wave_file)
                 snowing = True
                 has_sound = True
             weather_refresh = time.monotonic()
@@ -204,11 +209,13 @@ while True:
         # pick next thunderbolt time now
         Thunder = random.randint(0, 2)
         if Thunder == 0:
-            wave_file = open("sound/Thunderstorm0.wav", "rb")
+            wave_filename = "sound/Thunderstorm0.wav"
         elif Thunder == 1:
-            wave_file = open("sound/Thunderstorm1.wav", "rb")
+            wave_filename = "sound/Thunderstorm1.wav"
         elif Thunder == 2:
-            wave_file = open("sound/Thunderstorm2.wav", "rb")
+            wave_filename = "sound/Thunderstorm2.wav"
-        wave = audiocore.WaveFile(wave_file)
+        if wave_filename:
-        audio.play(wave)
+            with open(wave_filename, "rb") as wave_file:
+                wave = audiocore.WaveFile(wave_file)
+            audio.play(wave)
         next_bolt_time = time.monotonic() + random.randint(5, 15)  # between 5 and 15 s

CircuitPython_WeatherCloud/secrets.py

@@ -1,13 +0,0 @@
-# SPDX-FileCopyrightText: 2020 Limor Fried for Adafruit Industries
-#
-# SPDX-License-Identifier: MIT
-
-# This file is where you keep secret settings, passwords, and tokens!
-# If you put them in the code you risk committing that info or sharing it
-
-secrets = {
-    'ssid' : 'my_ssid',
-    'password' : 'my_pass',
-    'timezone' : "America/New_York", # http://worldtimeapi.org/timezones
-    'openweather_token' : 'putYourOpenWeatherTokenHere',
-    }

CircuitPython_WeatherCloud/settings.toml

@@ -0,0 +1,12 @@
+# SPDX-FileCopyrightText: 2020 Limor Fried for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+# This file is where you keep private settings, passwords, and tokens!
+# If you put them in the code you risk committing that info or sharing it
+
+
+CIRCUITPY_WIFI_SSID="your-wifi-ssid"
+CIRCUITPY_WIFI_PASSWORD="your-wifi-password"
+timezone="America/New_York"  # http://worldtimeapi.org/timezones
+openweather_token="putYourOpenWeatherTokenHere"

CircuitPython_qrio/adafruit_io/code.py

@@ -4,12 +4,12 @@
 
 """
 This demo is designed for the Kaluga development kit version 1.3 with the
-ILI9341 display.  Your secrets.py must be populated with your wifi credentials
+ILI9341 display.  Your settings.toml must be populated with your wifi credentials
 and your Adafruit IO credentials.
 """
 
+from os import getenv
 import ssl
-from secrets import secrets
 from ulab import numpy as np
 from terminalio import FONT
 import board
@@ -25,6 +25,21 @@ from adafruit_ili9341 import ILI9341
 from adafruit_io.adafruit_io import IO_MQTT
 import adafruit_minimqtt.adafruit_minimqtt as MQTT
 
+# Get WiFi details and Adafruit IO keys, ensure these are setup in settings.toml
+# (visit io.adafruit.com if you need to create an account, or if you need your Adafruit IO key.)
+ssid = getenv("CIRCUITPY_WIFI_SSID")
+password = getenv("CIRCUITPY_WIFI_PASSWORD")
+aio_username = getenv("ADAFRUIT_AIO_USERNAME")
+aio_key = getenv("ADAFRUIT_AIO_KEY")
+
+if None in [ssid, password, aio_username, aio_key]:
+    raise RuntimeError(
+        "WiFi and Adafruit IO settings are kept in settings.toml, "
+        "please add them there. The settings file must contain "
+        "'CIRCUITPY_WIFI_SSID', 'CIRCUITPY_WIFI_PASSWORD', "
+        "'ADAFRUIT_AIO_USERNAME' and 'ADAFRUIT_AIO_KEY' at a minimum."
+    )
+
 # To change the name of the feed on adafruit_io, just modify this string:
 feed_name = "qrstring"
 
@@ -53,14 +68,14 @@ cam.flip_y = False
 cam.colorspace = adafruit_ov2640.OV2640_COLOR_YUV
 
 print("Connecting to WIFI")
-wifi.radio.connect(secrets["ssid"], secrets["password"])
+wifi.radio.connect(ssid, password)
 pool = socketpool.SocketPool(wifi.radio)
 
 print("Connecting to Adafruit IO")
 mqtt_client = MQTT.MQTT(
     broker="io.adafruit.com",
-    username=secrets["aio_username"],
+    username=aio_username,
-    password=secrets["aio_key"],
+    password=aio_key,
     socket_pool=pool,
     ssl_context=ssl.create_default_context(),
 )

CircuitPython_qrio/usb_hid/code.py

@@ -4,8 +4,7 @@
 
 """
 This demo is designed for the Kaluga development kit version 1.3 with the
-ILI9341 display.  Your secrets.py must be populated with your wifi credentials
+ILI9341 display.
-and your Adafruit IO credentials.
 """
 
 from ulab import numpy as np

CircuitStonks/code.py

@@ -2,6 +2,7 @@
 #
 # SPDX-License-Identifier: MIT
 
+from os import getenv
 import time
 import board
 from digitalio import DigitalInOut
@@ -14,12 +15,17 @@ import displayio
 
 minitft = minitft_featherwing.MiniTFTFeatherWing()
 
-# Get wifi details and more from a secrets.py file
+# Get WiFi details, ensure these are setup in settings.toml
-try:
+ssid = getenv("CIRCUITPY_WIFI_SSID")
-    from secrets import secrets
+password = getenv("CIRCUITPY_WIFI_PASSWORD")
-except ImportError:
+
-    print("WiFi secrets are kept in secrets.py, please add them there!")
+if None in [ssid, password]:
-    raise
+    raise RuntimeError(
+        "WiFi settings are kept in settings.toml, "
+        "please add them there. The settings file must contain "
+        "'CIRCUITPY_WIFI_SSID', 'CIRCUITPY_WIFI_PASSWORD', "
+        "at a minimum."
+    )
 
 # If you are using a board with pre-defined ESP32 Pins:
 esp32_cs = DigitalInOut(board.D13)
@@ -27,11 +33,11 @@ esp32_ready = DigitalInOut(board.D11)
 esp32_reset = DigitalInOut(board.D12)
 spi = board.SPI()
 esp = adafruit_esp32spi.ESP_SPIcontrol(spi, esp32_cs, esp32_ready, esp32_reset)
-wifi = adafruit_esp32spi_wifimanager.ESPSPI_WiFiManager(esp, secrets)
+wifi = adafruit_esp32spi_wifimanager.WiFiManager(esp, ssid, password)
 
 # Symbol "INX" for S&P500, "DJIA" for Dow
 DATA_SOURCE = "https://www.alphavantage.co/query?function=GLOBAL_QUOTE&apikey="
-DATA_SOURCE += secrets['alphavantage_key']
+DATA_SOURCE += getenv('alphavantage_key')
 symbols = ["DJIA", "INX", "AAPL", "TSLA", "MSFT"]
 
 # Set text, font, and color

CircuitStonks/secrets.py

@@ -1,11 +0,0 @@
-# SPDX-FileCopyrightText: 2020 Limor Fried for Adafruit Industries
-#
-# SPDX-License-Identifier: MIT
-
-
-secrets = {
-    'ssid' : 'myssid',
-    'password' : 'mypassword',
-    'timezone' : "America/New_York", # http://worldtimeapi.org/timezones
-    'alphavantage_key' : 'GRABAFREEKEYONLINE'
-    }

CircuitStonks/settings.toml

@@ -0,0 +1,11 @@
+# SPDX-FileCopyrightText: 2020 Limor Fried for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+# This file is where you keep private settings, passwords, and tokens!
+# If you put them in the code you risk committing that info or sharing it
+
+CIRCUITPY_WIFI_SSID="your-wifi-ssid"
+CIRCUITPY_WIFI_PASSWORD="your-wifi-password"
+timezone="America/New_York"  # http://worldtimeapi.org/timezones
+alphavantage_key="GRABAFREEKEYONLINE"

ESP32_S2_WiFi_Tests/code.py

@@ -2,6 +2,7 @@
 #
 # SPDX-License-Identifier: MIT
 
+from os import getenv
 import ipaddress
 import ssl
 import wifi
@@ -13,12 +14,17 @@ TEXT_URL = "http://wifitest.adafruit.com/testwifi/index.html"
 JSON_QUOTES_URL = "https://www.adafruit.com/api/quotes.php"
 JSON_STARS_URL = "https://api.github.com/repos/adafruit/circuitpython"
 
-# Get wifi details and more from a secrets.py file
+# Get WiFi details, ensure these are setup in settings.toml
-try:
+ssid = getenv("CIRCUITPY_WIFI_SSID")
-    from secrets import secrets
+password = getenv("CIRCUITPY_WIFI_PASSWORD")
-except ImportError:
+
-    print("WiFi secrets are kept in secrets.py, please add them there!")
+if None in [ssid, password]:
-    raise
+    raise RuntimeError(
+        "WiFi settings are kept in settings.toml, "
+        "please add them there. The settings file must contain "
+        "'CIRCUITPY_WIFI_SSID', 'CIRCUITPY_WIFI_PASSWORD', "
+        "at a minimum."
+    )
 
 print("ESP32-S2 WebClient Test")
 
@@ -30,10 +36,10 @@ for network in wifi.radio.start_scanning_networks():
             network.rssi, network.channel))
 wifi.radio.stop_scanning_networks()
 
-print("Connecting to %s"%secrets["ssid"])
+print(f"Connecting to {ssid}")
-wifi.radio.connect(secrets["ssid"], secrets["password"])
+wifi.radio.connect(ssid, password)
-print("Connected to %s!"%secrets["ssid"])
+print(f"Connected to {ssid}!")
-print("My IP address is", wifi.radio.ipv4_address)
+print(f"My IP address is {wifi.radio.ipv4_address}")
 
 ipv4 = ipaddress.ip_address("8.8.4.4")
 print("Ping google.com: %f ms" % (wifi.radio.ping(ipv4)*1000))