Added weather module.

scripts/weather.nix

@@ -0,0 +1,18 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+with pkgs;
+
+mkShell {
+  buildInputs = [
+    pkgs.python3
+    pkgs.python3.pkgs.requests
+  ];
+    shellHook = ''
+    # Tells pip to put packages into $PIP_PREFIX instead of the usual locations.
+    # See https://pip.pypa.io/en/stable/user_guide/#environment-variables.
+    export PIP_PREFIX=$(pwd)/_build/pip_packages
+    export PYTHONPATH="$PIP_PREFIX/${pkgs.python3.sitePackages}:$PYTHONPATH"
+    export PATH="$PIP_PREFIX/bin:$PATH"
+    unset SOURCE_DATE_EPOCH
+  '';
+}

scripts/weather.py

@@ -0,0 +1,48 @@
+import requests
+import json
+import sys
+
+#city = "London"
+#api_key = "08588263e133e79c17cef6d01a5c6da8"
+city = sys.argv[1]
+api_key = sys.argv[2]
+
+url = f"https://api.openweathermap.org/data/2.5/weather?q={city}&appid={api_key}&units=metric"
+
+weather_icons = {
+    "Thunderstorm": "摒",
+    "Clouds": "摒",
+    "Drizzle": "",
+    "Rain": "",
+    "Snow": "流",
+    "Clear": "滛",
+    "Mist": "",
+    "Smoke": "",
+    "Haze": "",
+    "Dust": "",
+    "Fog": "",
+    "Sand": "",
+    "Ash": "",
+    "Squall": "",
+    "Tornado": ""
+}
+
+def degrees_to_cardinal(d):
+    dirs = ["N", "NNE", "NE", "ENE", "E", "ESE", "SE", "SSE",
+            "S", "SSW", "SW", "WSW", "W", "WNW", "NW", "NNW"]
+    ix = int((d + 11.25)/22.5)
+    return dirs[ix % 16]
+
+response = requests.get(url)
+data = json.loads(response.text)
+#print(data)
+
+condition = data["weather"][0]["main"]
+weather_icon = weather_icons[condition]
+temperature = f"{data['main']['temp']}°C"
+feels_like_temperature = f"{data['main']['feels_like']}°C"
+humidity = f"{data['main']['humidity']}%"
+wind = f"{data['wind']['speed']}m/s {degrees_to_cardinal(data['wind']['deg'])}"
+
+end_string = f"{weather_icon}  {temperature} {feels_like_temperature} {humidity} {wind}"
+print(end_string)