add flake8, mypi and fix code. Add pybind11 submodule at v2.5.0

Author: hoffmang9

.flake8

@@ -0,0 +1,4 @@
+[flake8]
+max-line-length = 120
+exclude = ./typings/**/*, ./src/lib/pybind11
+ignore = E203,W503

.github/workflows/build.yml

@@ -26,6 +26,16 @@ jobs:
         python -m pip install --upgrade pip
         python -m pip install cibuildwheel==1.3.0
 
+    - name: Lint source with flake8
+      run: |
+        pip install flake8
+        flake8 src
+
+    - name: Lint source with mypy
+      run: |
+        pip install mypy
+        mypy --config-file mypi.ini src
+
     - name: Build source distribution with MacOS
       if: startsWith(matrix.os, 'mac')
       run: |

.gitignore

@@ -11,3 +11,6 @@
 /verifier
 /verifier_test
 /build/*
+
+# Tests cache
+.mypy_cache

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "src/lib/pybind11"]
+	path = src/lib/pybind11
+	url = https://github.com/pybind/pybind11.git

mypi.ini

@@ -0,0 +1,2 @@
+[mypy]
+ignore_missing_imports = True

setup.py

@@ -247,6 +247,7 @@ def build_extensions(self):
         license='Apache License',
         python_requires='>=3.7',
         long_description=open('README.md').read(),
+        long_description_content_type="text/markdown",
         build_requires=["pybind11"],
         ext_modules=ext_modules,
         cmdclass={'build_ext': BuildExt},

src/classgroup.py

@@ -1,5 +1,6 @@
 from fastvdf import verify_wesolowski
 
+
 class ClassGroup(tuple):
     @classmethod
     def identity_for_discriminant(class_, d):
@@ -71,12 +72,13 @@ def serialize(self):
                          for x in [r[0], r[1]]])
 
 
-def deserialize_proof(proof_blob,  discriminant):
+def deserialize_proof(proof_blob, discriminant):
     int_size = (discriminant.bit_length() + 16) >> 4
     proof_arr = [proof_blob[_:_ + 2 * int_size]
-                 for _ in range(0, len(proof_blob), 2*int_size)]
+                 for _ in range(0, len(proof_blob), 2 * int_size)]
     return [ClassGroup.from_bytes(blob, discriminant) for blob in proof_arr]
 
+
 def check_proof_of_time_nwesolowski(discriminant, x, proof_blob,
                                     iterations, int_size_bits, depth):
     """
@@ -94,9 +96,7 @@ def check_proof_of_time_nwesolowski(discriminant, x, proof_blob,
     try:
         int_size = (int_size_bits + 16) >> 4
         if (
-            len(proof_blob) !=
-            4 * int_size +
-            depth * (8 + 4 * int_size)
+            len(proof_blob) != 4 * int_size + depth * (8 + 4 * int_size)
         ):
             return False
         new_proof_blob = proof_blob[:4 * int_size]
@@ -142,9 +142,10 @@ def check_proof_of_time_nwesolowski(discriminant, x, proof_blob,
             str(proof[-1][1]),
             iterations,
         )
-    except Exception as e:
+    except Exception:
         return False
 
+
 """
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