Fix pylint issues

scripts/endToEndExtraction/verify-testcases.py

@@ -155,8 +155,8 @@ class TraceAnalyser:
         print(len(intersection), "test-cases - ", len(mismatches), " mismatche(s)")
 
     def check_traces(self, test_name, left, right, mismatches):
-        for trace_id in range(0, len(left.traces)):
+        for trace_id, trace in enumerate(left.traces):
-            left_trace = left.traces[trace_id]
+            left_trace = trace
             right_trace = right.traces[trace_id]
             assert (left_trace.kind == right_trace.kind)
             if str(left_trace) != str(right_trace):

scripts/extract_test_cases.py

@@ -10,7 +10,8 @@ import sys
 import re
 
 def extract_test_cases(_path):
-    lines = open(_path, mode='rb', encoding='utf8').read().splitlines()
+    with open(_path, mode='rb', encoding='utf8') as f:
+        lines = f.read().splitlines()
 
     inside = False
     delimiter = ''
@@ -22,7 +23,8 @@ def extract_test_cases(_path):
     for l in lines:
         if inside:
             if l.strip().endswith(')' + delimiter + '";'):
-                open('%03d_%s.sol' % (ctr, test_name), mode='wb', encoding='utf8').write(test)
+                with open('%03d_%s.sol' % (ctr, test_name), mode='wb', encoding='utf8') as f:
+                    f.write(test)
                 ctr += 1
                 inside = False
                 test = ''

scripts/isolate_tests.py

@@ -13,7 +13,8 @@ import hashlib
 from os.path import join, isfile, split
 
 def extract_test_cases(path):
-    lines = open(path, encoding="utf8", errors='ignore', mode='r', newline='').read().splitlines()
+    with open(path, encoding="utf8", errors='ignore', mode='r', newline='') as file:
+        lines = file.read().splitlines()
 
     inside = False
     delimiter = ''
@@ -45,7 +46,10 @@ def extract_docs_cases(path):
     tests = []
 
     # Collect all snippets of indented blocks
-    for l in open(path, mode='r', errors='ignore', encoding='utf8', newline='').read().splitlines():
+
+    with open(path, mode='r', errors='ignore', encoding='utf8', newline='') as f:
+        lines = f.read().splitlines()
+    for l in lines:
         if l != '':
             if not insideBlock and l.startswith(' '):
                 # start new test
@@ -87,14 +91,16 @@ def write_cases(f, tests):
         # so before checking remove 4 spaces from each line.
         remainder = re.sub(r'^ {4}', '', test, 0, re.MULTILINE)
         sol_filename = 'test_%s_%s.sol' % (hashlib.sha256(test.encode("utf-8")).hexdigest(), cleaned_filename)
-        open(sol_filename, mode='w', encoding='utf8', newline='').write(remainder)
+        with open(sol_filename, mode='w', encoding='utf8', newline='') as fi:
+            fi.write(remainder)
 
 def extract_and_write(f, path):
     if docs:
         cases = extract_docs_cases(path)
     else:
         if f.endswith('.sol'):
-            cases = [open(path, mode='r', encoding='utf8', newline='').read()]
+            with open(path, mode='r', encoding='utf8', newline='') as _f:
+                cases = [_f.read()]
         else:
             cases = extract_test_cases(path)
     write_cases(f, cases)

scripts/regressions.py

@@ -88,7 +88,8 @@ class regressor():
 
         ## Log may contain non ASCII characters, so we simply stringify them
         ## since they don't matter for regular expression matching
-        rawtext = str(open(logfile, 'rb').read())
+        with open(logfile, 'rb') as f:
+            rawtext = str(f.read())
         return not re.search(self._re_sanitizer_log, rawtext)
 
     def run(self):

scripts/splitSources.py

@@ -63,7 +63,8 @@ if __name__ == '__main__':
 
     try:
         # decide if file has multiple sources
-        lines = open(filePath, mode='r', encoding='utf8', newline='').read().splitlines()
+        with open(filePath, mode='r', encoding='utf8', newline='') as f:
+            lines = f.read().splitlines()
         if lines[0][:12] == "==== Source:":
             hasMultipleSources = True
             writeSourceToFile(lines)

scripts/update_bugs_by_version.py

@@ -26,14 +26,14 @@ with open(path + '/../Changelog.md') as changelog:
             versions[m.group(1)] = {}
             versions[m.group(1)]['released'] = m.group(2)
 
-for v in versions:
+for key, value in versions.items():
-    versions[v]['bugs'] = []
+    value['bugs'] = []
     for bug in bugs:
-        if 'introduced' in bug and comp(bug['introduced']) > comp(v):
+        if 'introduced' in bug and comp(bug['introduced']) > comp(key):
             continue
-        if comp(bug['fixed']) <= comp(v):
+        if comp(bug['fixed']) <= comp(key):
             continue
-        versions[v]['bugs'] += [bug['name']]
+        value['bugs'] += [bug['name']]
 
 new_contents = json.dumps(versions, sort_keys=True, indent=4, separators=(',', ': '))
 with open(path + '/../docs/bugs_by_version.json', 'r') as bugs_by_version:

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

@@ -8,7 +8,8 @@ from os.path import join, isfile
 
 
 def extract_test_cases(path):
-    lines = open(path, encoding="utf8", errors='ignore', mode='rb').read().splitlines()
+    with open(path, encoding="utf8", errors='ignore', mode='rb') as f:
+        lines = f.read().splitlines()
 
     inside = False
     delimiter = ''
@@ -32,7 +33,8 @@ def extract_test_cases(path):
 
 def extract_and_write(f, path):
     if f.endswith('.sol'):
-        cases = [open(path, 'r').read()]
+        with open(path, 'r') as _f:
+            cases = [_f.read()]
     else:
         cases = extract_test_cases(path)
     write_cases(f, cases)
@@ -41,7 +43,8 @@ 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)
-        open('test_%s_%s.sol' % (hashlib.sha256(test).hexdigest(), cleaned_filename), 'w').write(remainder)
+        with open('test_%s_%s.sol' % (hashlib.sha256(test).hexdigest(), cleaned_filename), 'w') as _f:
+            _f.write(remainder)
 
 
 if __name__ == '__main__':