update formatting as per PR tests

IPython/core/formatters.py

@@ -678,8 +678,9 b' class PlainTextFormatter(BaseFormatter):'
         d = pretty._type_pprinters.copy()
         d[float] = lambda obj,p,cycle: p.text(self.float_format%obj)
         # if NumPy is used, set precision for its float64 type
-        if 'numpy' in sys.modules:
+        if "numpy" in sys.modules:
             import numpy
+
             d[numpy.float64] = lambda obj,p,cycle: p.text(self.float_format%obj)
         return d