sagemathgh-36822: Fix linter failure in 10.3.beta0

    
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URL: sagemath#36822
Reported by: Matthias Köppe
Reviewer(s): Frédéric Chapoton

src/sage/schemes/elliptic_curves/mod_poly.py

@@ -24,6 +24,7 @@
 _cache_bound = 100
 _cache = dict()
 
+
 def classical_modular_polynomial(l, j=None):
     r"""
     Return the classical modular polynomial `\Phi_\ell`, either as a
@@ -143,6 +144,7 @@ def classical_modular_polynomial(l, j=None):
     # and simply evaluating it.
     return classical_modular_polynomial(l)(j, Y)
 
+
 def _set_cache_bound(bnd):
     r"""
     Internal helper function to allow setting the caching cutoff for
@@ -164,4 +166,5 @@ def _set_cache_bound(bnd):
     global _cache_bound
     _cache_bound = bnd
 
+
 classical_modular_polynomial.set_cache_bound = _set_cache_bound