diff --git a/.gitignore b/.gitignore
index 2ecc92aad..7545baa1d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,5 +36,6 @@ verilator_coverage_bin*
 verilator.pc
 verilator-config.cmake
 verilator-config-version.cmake
+**/__pycache__/*
 **/_build/*
 **/obj_dir/*
diff --git a/Makefile.in b/Makefile.in
index de87a7a68..c3dbbb6da 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -508,8 +508,8 @@ PYLINT = pylint
 PYLINT_FLAGS = --disable=R0801
 
 lint-py:
-	$(FLAKE8) $(FLAKE8_FLAGS) $(PY_PROGRAMS)
-	$(PYLINT) $(PYLINT_FLAGS) $(PY_PROGRAMS)
+	-$(FLAKE8) $(FLAKE8_FLAGS) $(PY_PROGRAMS)
+	-$(PYLINT) $(PYLINT_FLAGS) $(PY_PROGRAMS)
 
 format-pl-exec:
 	-chmod a+x test_regress/t/*.pl
diff --git a/docs/install.rst b/docs/install.rst
index 0a47b3822..f6f7a2031 100644
--- a/docs/install.rst
+++ b/docs/install.rst
@@ -362,7 +362,7 @@ Some relevant files and directories in this package are as follows:
 ::
 
    Changes                     => Version history
-   README.rst                 => This document
+   README.rst                  => This document
    bin/verilator               => Compiler wrapper invoked to Verilate code
    docs/                       => Additional documentation
    examples/make_hello_c       => Example GNU-make simple Verilog->C++ conversion
diff --git a/nodist/code_coverage b/nodist/code_coverage
index 44efa6d0f..3e70bbb36 100755
--- a/nodist/code_coverage
+++ b/nodist/code_coverage
@@ -47,7 +47,7 @@ def test():
             #  to uncovered (in G++ 9.3.0) even with all inlining turned off.
             #  Having false negative coverage is more effort then missing negatives.
             #  Also this seems to explode the runtime (since a lot more data).
-            #+ " -fkeep-inline-functions"
+            #  + " -fkeep-inline-functions"
             # Otherwise static may not show as uncovered
             + " -fkeep-static-functions"
             # Exceptions can pollute the branch coverage data
diff --git a/src/astgen b/src/astgen
index a78973055..a5057b7a8 100755
--- a/src/astgen
+++ b/src/astgen
@@ -602,7 +602,8 @@ def write_type_enum(fh, typen, idx, processed, kind, indent):
 def write_types(filename):
     with open_file(filename) as fh:
         fh.write("    enum en : uint16_t {\n")
-        (final, last) = write_type_enum(fh, "Node", 0, {}, "concrete-enum", 2)
+        (final, ignored) = write_type_enum(  # pylint: disable=W0612
+            fh, "Node", 0, {}, "concrete-enum", 2)
         fh.write("        _ENUM_END = " + str(final) + "\n")
         fh.write("    };\n")