Update commander.py, jumpgate.py and two other files

nullptr/models/jumpgate.py

@@ -22,5 +22,6 @@ class Jumpgate(SystemMember):
   def f(self, detail=1):
     r = self.symbol
     if detail > 1:
+      r += '\n'
       r += '\n'.join(self.systems)
     return r

nullptr/models/marketplace.py

@@ -31,6 +31,15 @@ class Marketplace(SystemMember):
   def ext(self):
     return 'mkt'
   
+  def rtype(self, r):
+    if r in self.imports:
+      return 'I'
+    if r in self.exports:
+      return 'E'
+    if r in self.exchange:
+      return 'X'
+    return '?'
+    
   def path(self):
     sector, system, _ = self.symbol.split('-')
     return f'atlas/{sector}/{system[0:1]}/{system}/{self.symbol}.{self.ext()}'
@@ -40,5 +49,6 @@ class Marketplace(SystemMember):
     if detail > 1:
       r += '\n'
       for p in self.prices.values():
-        r += f'{p["symbol"]:25s} {p["sell"]:5d} {p["buy"]:5d}\n'
+        t = self.rtype(p['symbol'])
+        r += f'{t} {p["symbol"]:25s} {p["sell"]:5d} {p["buy"]:5d}\n'
     return r

nullptr/models/system.py

@@ -22,3 +22,6 @@ class System(Base):
   
   def distance(self, other):
     return int(sqrt((self.x - other.x) ** 2 + (self.y - other.y) ** 2))
+  
+  def sector(self):
+    return self.symbol.split('-')[0]