modified docstring/helptext a bit

modules/currency.py

@@ -13,7 +13,11 @@ BTC_URI = "https://api.coindesk.com/v1/bpi/currentprice/{CUR_TO}.json"
 @commands('cur', 'currency', 'exchange')
 @example('.cur 20 EUR to USD')
 def exchange(bot, trigger):
-	"""Show the exchange rate between two currencies"""
+	"""
+	Show the exchange rate between two currencies.
+	
+	Supported currencies: https://www.exchangerate-api.com/supported-currencies
+	"""
 	amount = trigger.group(3)
 	cur_from = trigger.group(4)
 	cur_to = trigger.group(5)

modules/url.py

@@ -8,10 +8,28 @@ from html.parser import HTMLParser
 
 import requests
 
-from module import hook
+from module import hook, url_callback
 
 HEADERS = {"User-Agent": "bix nood gimme the title", "Range": "bytes=0-4096"}
 
+@url_callback('puu.sh/')
+def get_puush_fname(bot, url):
+	"""
+	Callback puu.sh links. Gets the filename and displays it.
+	"""
+	try:
+		res = requests.head(url)
+	except requests.exceptions.RequestException:
+		return
+
+	fname = res.headers.get('Content-Disposition', '')
+	fname = re.search(r'\"(.*)\"', fname).group(1)
+	if not fname:
+		return
+
+	bot.msg(f"[ \x0310puu.sh \x03] - \x0304{fname}")
+
+
 @hook(True)
 def title_auto(bot, trigger):
 	"""