pylint: Enable and fix redefined-builtin warnings

docs/conf.py

@@ -63,7 +63,7 @@ master_doc = 'index'
 
 # General information about the project.
 project = 'Solidity'
-copyright = '2016-2021, Ethereum'
+project_copyright = '2016-2021, Ethereum'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the

scripts/endToEndExtraction/remove-testcases.py

@@ -33,12 +33,12 @@ def parse_call(call):
     return function.strip(), arguments.strip(), results.strip()
 
 
-def colorize(left, right, id):
+def colorize(left, right, index):
     red = "\x1b[31m"
     yellow = "\x1b[33m"
     reset = "\x1b[0m"
     colors = [red, yellow]
-    color = colors[id % len(colors)]
+    color = colors[index % len(colors)]
     function, _arguments, _results = parse_call(right)
     left = left.replace("compileAndRun", color + "compileAndRun" + reset)
     right = right.replace("constructor", color + "constructor" + reset)

scripts/endToEndExtraction/verify-testcases.py

@@ -32,11 +32,11 @@ class Trace:
     def get_input(self):
         return self._input
 
-    def set_input(self, input):
+    def set_input(self, bytecode):
         if self.kind == "create":
             # remove cbor encoded metadata from bytecode
-            length = int(input[-4:], 16) * 2
+            length = int(bytecode[-4:], 16) * 2
-            self._input = input[:len(input) - length - 4]
+            self._input = bytecode[:len(bytecode) - length - 4]
 
     def get_output(self):
         return self._output
@@ -110,21 +110,21 @@ class TraceAnalyser:
 
     @staticmethod
     def parse_parameters(line, trace):
-        input = re.search(r'\s*in:\s*([a-fA-F0-9]*)', line, re.M | re.I)
+        input_match = re.search(r'\s*in:\s*([a-fA-F0-9]*)', line, re.M | re.I)
-        if input:
+        if input_match:
-            trace.input = input.group(1)
+            trace.input = input_match.group(1)
-        output = re.search(r'\s*out:\s*([a-fA-F0-9]*)', line, re.M | re.I)
+        output_match = re.search(r'\s*out:\s*([a-fA-F0-9]*)', line, re.M | re.I)
-        if output:
+        if output_match:
-            trace.output = output.group(1)
+            trace.output = output_match.group(1)
-        result = re.search(r'\s*result:\s*([a-fA-F0-9]*)', line, re.M | re.I)
+        result_match = re.search(r'\s*result:\s*([a-fA-F0-9]*)', line, re.M | re.I)
-        if result:
+        if result_match:
-            trace.result = result.group(1)
+            trace.result = result_match.group(1)
-        gas_used = re.search(r'\s*gas\sused:\s*([a-fA-F0-9]*)', line, re.M | re.I)
+        gas_used_match = re.search(r'\s*gas\sused:\s*([a-fA-F0-9]*)', line, re.M | re.I)
-        if gas_used:
+        if gas_used_match:
-            trace.gas = gas_used.group(1)
+            trace.gas = gas_used_match.group(1)
-        value = re.search(r'\s*value:\s*([a-fA-F0-9]*)', line, re.M | re.I)
+        value_match = re.search(r'\s*value:\s*([a-fA-F0-9]*)', line, re.M | re.I)
-        if value:
+        if value_match:
-            trace.value = value.group(1)
+            trace.value = value_match.group(1)
 
     def diff(self, analyser):
         if not self.ready:

scripts/error_codes.py

@@ -44,11 +44,11 @@ def find_ids_in_source_file(file_name, id_to_file_names):
         if in_comment(source, m.start()):
             continue
         underscore_pos = m.group(0).index("_")
-        id = m.group(0)[0:underscore_pos]
+        error_id = m.group(0)[0:underscore_pos]
-        if id in id_to_file_names:
+        if error_id in id_to_file_names:
-            id_to_file_names[id].append(file_name)
+            id_to_file_names[error_id].append(file_name)
         else:
-            id_to_file_names[id] = [file_name]
+            id_to_file_names[error_id] = [file_name]
 
 
 def find_ids_in_source_files(file_names):
@@ -76,16 +76,16 @@ def fix_ids_in_source_file(file_name, id_to_count, available_ids):
         destination.extend(source[k:m.start()])
 
         underscore_pos = m.group(0).index("_")
-        id = m.group(0)[0:underscore_pos]
+        error_id = m.group(0)[0:underscore_pos]
 
         # incorrect id or id has a duplicate somewhere
-        if not in_comment(source, m.start()) and (len(id) != 4 or id[0] == "0" or id_to_count[id] > 1):
+        if not in_comment(source, m.start()) and (len(error_id) != 4 or error_id[0] == "0" or id_to_count[error_id] > 1):
-            assert id in id_to_count
+            assert error_id in id_to_count
             new_id = get_next_id(available_ids)
             assert new_id not in id_to_count
-            id_to_count[id] -= 1
+            id_to_count[error_id] -= 1
         else:
-            new_id = id
+            new_id = error_id
 
         destination.extend(new_id + "_error")
         k = m.end()
@@ -104,7 +104,7 @@ def fix_ids_in_source_files(file_names, id_to_count):
     id_to_count contains number of appearances of every id in sources
     """
 
-    available_ids = {str(id) for id in range(1000, 10000)} - id_to_count.keys()
+    available_ids = {str(error_id) for error_id in range(1000, 10000)} - id_to_count.keys()
     for file_name in file_names:
         fix_ids_in_source_file(file_name, id_to_count, available_ids)
 
@@ -113,8 +113,8 @@ def find_files(top_dir, sub_dirs, extensions):
     """Builds a list of files with given extensions in specified subdirectories"""
 
     source_file_names = []
-    for dir in sub_dirs:
+    for directory in sub_dirs:
-        for root, _, file_names in os.walk(os.path.join(top_dir, dir), onerror=lambda e: exit(f"Walk error: {e}")):
+        for root, _, file_names in os.walk(os.path.join(top_dir, directory), onerror=lambda e: sys.exit(f"Walk error: {e}")):
             for file_name in file_names:
                 _, ext = path.splitext(file_name)
                 if ext in extensions:
@@ -145,27 +145,27 @@ def find_ids_in_cmdline_test_err(file_name):
 
 
 def print_ids(ids):
-    for k, id in enumerate(sorted(ids)):
+    for k, error_id in enumerate(sorted(ids)):
         if k % 10 > 0:
             print(" ", end="")
         elif k > 0:
             print()
-        print(id, end="")
+        print(error_id, end="")
 
 
 def print_ids_per_file(ids, id_to_file_names, top_dir):
     file_name_to_ids = {}
-    for id in ids:
+    for error_id in ids:
-        for file_name in id_to_file_names[id]:
+        for file_name in id_to_file_names[error_id]:
             relpath = path.relpath(file_name, top_dir)
             if relpath not in file_name_to_ids:
                 file_name_to_ids[relpath] = []
-            file_name_to_ids[relpath].append(id)
+            file_name_to_ids[relpath].append(error_id)
 
     for file_name in sorted(file_name_to_ids):
         print(file_name)
-        for id in sorted(file_name_to_ids[file_name]):
+        for error_id in sorted(file_name_to_ids[file_name]):
-            print(f" {id}", end="")
+            print(f" {error_id}", end="")
         print()
 
 
@@ -289,15 +289,15 @@ def main(argv):
     source_id_to_file_names = find_ids_in_source_files(source_file_names)
 
     ok = True
-    for id in sorted(source_id_to_file_names):
+    for error_id in sorted(source_id_to_file_names):
-        if len(id) != 4:
+        if len(error_id) != 4:
-            print(f"ID {id} length != 4")
+            print(f"ID {error_id} length != 4")
             ok = False
-        if id[0] == "0":
+        if error_id[0] == "0":
-            print(f"ID {id} starts with zero")
+            print(f"ID {error_id} starts with zero")
             ok = False
-        if len(source_id_to_file_names[id]) > 1:
+        if len(source_id_to_file_names[error_id]) > 1:
-            print(f"ID {id} appears {len(source_id_to_file_names[id])} times")
+            print(f"ID {error_id} appears {len(source_id_to_file_names[error_id])} times")
             ok = False
 
     if examine_coverage:
@@ -315,7 +315,7 @@ def main(argv):
         if not ok:
             print("Incorrect IDs have to be fixed before applying --next")
             sys.exit(1)
-        available_ids = {str(id) for id in range(1000, 10000)} - source_id_to_file_names.keys()
+        available_ids = {str(error_id) for error_id in range(1000, 10000)} - source_id_to_file_names.keys()
         next_id = get_next_id(available_ids)
         print(f"Next ID: {next_id}")
         sys.exit(0)
@@ -341,7 +341,7 @@ def main(argv):
             sys.exit(1)
 
     # number of appearances for every id
-    source_id_to_count = { id: len(file_names) for id, file_names in source_id_to_file_names.items() }
+    source_id_to_count = { error_id: len(file_names) for error_id, file_names in source_id_to_file_names.items() }
 
     fix_ids_in_source_files(source_file_names, source_id_to_count)
     print("Fixing completed")

scripts/isolate_tests.py

@@ -106,8 +106,8 @@ def write_cases(f, solidityTests, yulTests):
         # When code examples are extracted they are indented by 8 spaces, which violates the style guide,
         # so before checking remove 4 spaces from each line.
         remainder = dedent(test)
-        hash = hashlib.sha256(test.encode("utf-8")).hexdigest()
+        source_code_hash = hashlib.sha256(test.encode("utf-8")).hexdigest()
-        sol_filename = f'test_{hash}_{cleaned_filename}.{language}'
+        sol_filename = f'test_{source_code_hash}_{cleaned_filename}.{language}'
         with open(sol_filename, mode='w', encoding='utf8', newline='') as fi:
             fi.write(remainder)
 

scripts/pylintrc

@@ -14,7 +14,7 @@
 # ATTENTION: This list should be extended with care, consider using NOLINT comments inside your
 # python files instead, as the goal is actually to reduce the list of globally disabled checks.
 #
-# TODO: What could be eliminated in future PRs: bad-continuation, invalid-name, redefined-builtin,
+# TODO: What could be eliminated in future PRs: bad-continuation, invalid-name,
 # undefined-variable, unused-*, useless-object-inheritance.
 disable=
     bad-continuation,
@@ -25,7 +25,6 @@ disable=
     missing-docstring,
     no-else-return,
     pointless-string-statement,
-    redefined-builtin,
     redefined-outer-name,
     too-few-public-methods,
     too-many-public-methods,

scripts/wasm-rebuild/docker-scripts/isolate_tests.py

@@ -47,8 +47,8 @@ def write_cases(f, tests):
     cleaned_filename = f.replace(".","_").replace("-","_").replace(" ","_").lower()
     for test in tests:
         remainder = re.sub(r'^ {4}', '', test, 0, re.MULTILINE)
-        hash = hashlib.sha256(test).hexdigest()
+        source_code_hash = hashlib.sha256(test).hexdigest()
-        with open(f'test_{hash}_{cleaned_filename}.sol', 'w', encoding='utf8') as _f:
+        with open(f'test_{source_code_hash}_{cleaned_filename}.sol', 'w', encoding='utf8') as _f:
             _f.write(remainder)