The following issues were found

tests/basics/types2.py
5 issues
Missing module docstring
Error

Line: 1 Column: 1 

              # Types are hashable
print(hash(type) != 0)
print(hash(int) != 0)
print(hash(list) != 0)
class Foo: pass
print(hash(Foo) != 0)

print(int == int)
print(int != list)

Reported by Pylint.

Too few public methods (0/2)
Error

Line: 5 Column: 1 

              print(hash(type) != 0)
print(hash(int) != 0)
print(hash(list) != 0)
class Foo: pass
print(hash(Foo) != 0)

print(int == int)
print(int != list)

Reported by Pylint.

More than one statement on a single line
Error

Line: 5 Column: 12 

              print(hash(type) != 0)
print(hash(int) != 0)
print(hash(list) != 0)
class Foo: pass
print(hash(Foo) != 0)

print(int == int)
print(int != list)

Reported by Pylint.

Missing class docstring
Error

Line: 5 Column: 1 

              print(hash(type) != 0)
print(hash(int) != 0)
print(hash(list) != 0)
class Foo: pass
print(hash(Foo) != 0)

print(int == int)
print(int != list)

Reported by Pylint.

Redundant comparison - int == int
Error

Line: 8 Column: 7 

              class Foo: pass
print(hash(Foo) != 0)

print(int == int)
print(int != list)

d = {}
d[int] = list
d[list] = int

Reported by Pylint.

tests/basics/async_syntaxerror.py
5 issues
Consider explicitly re-raising using the 'from' keyword
Error

Line: 7 Column: 5 

                  exec
except NameError:
    print("SKIP")
    raise SystemExit


def test_syntax(code):
    try:
        exec(code)

Reported by Pylint.

Use of exec
Error

Line: 12 Column: 9 

              
def test_syntax(code):
    try:
        exec(code)
        print("no SyntaxError")
    except SyntaxError:
        print("SyntaxError")

Reported by Pylint.

Use of exec detected.
Security

Line: 12
Suggestion: https://bandit.readthedocs.io/en/latest/plugins/b102_exec_used.html 

              
def test_syntax(code):
    try:
        exec(code)
        print("no SyntaxError")
    except SyntaxError:
        print("SyntaxError")

Reported by Bandit.

Missing module docstring
Error

Line: 1 Column: 1 

              # test syntax errors using async

try:
    exec
except NameError:
    print("SKIP")
    raise SystemExit

Reported by Pylint.

Missing function or method docstring
Error

Line: 10 Column: 1 

                  raise SystemExit


def test_syntax(code):
    try:
        exec(code)
        print("no SyntaxError")
    except SyntaxError:
        print("SyntaxError")

Reported by Pylint.

tests/extmod/uasyncio_current_task.py
5 issues
Consider explicitly re-raising using the 'from' keyword
Error

Line: 10 Column: 9 

                      import asyncio
    except ImportError:
        print("SKIP")
        raise SystemExit


async def task(result):
    result[0] = asyncio.current_task()

Reported by Pylint.

Missing module docstring
Error

Line: 1 Column: 1 

              # Test current_task() function

try:
    import uasyncio as asyncio
except ImportError:
    try:
        import asyncio
    except ImportError:
        print("SKIP")

Reported by Pylint.

Missing function or method docstring
Error

Line: 13 Column: 1 

                      raise SystemExit


async def task(result):
    result[0] = asyncio.current_task()


async def main():
    result = [None]

Reported by Pylint.

Missing function or method docstring
Error

Line: 17 Column: 1 

                  result[0] = asyncio.current_task()


async def main():
    result = [None]
    t = asyncio.create_task(task(result))
    await asyncio.sleep(0)
    await asyncio.sleep(0)
    print(t is result[0])

Reported by Pylint.

Variable name "t" doesn't conform to snake_case naming style
Error

Line: 19 Column: 5 

              
async def main():
    result = [None]
    t = asyncio.create_task(task(result))
    await asyncio.sleep(0)
    await asyncio.sleep(0)
    print(t is result[0])

Reported by Pylint.

tests/basics/subclass_native2_list.py
5 issues
Missing module docstring
Error

Line: 1 Column: 1 

              class Base1:
    def __init__(self, *args):
        print("Base1.__init__", args)

class Clist1(Base1, list):
    pass

a = Clist1()
print(len(a))

Reported by Pylint.

Missing class docstring
Error

Line: 1 Column: 1 

              class Base1:
    def __init__(self, *args):
        print("Base1.__init__", args)

class Clist1(Base1, list):
    pass

a = Clist1()
print(len(a))

Reported by Pylint.

Too few public methods (0/2)
Error

Line: 1 Column: 1 

              class Base1:
    def __init__(self, *args):
        print("Base1.__init__", args)

class Clist1(Base1, list):
    pass

a = Clist1()
print(len(a))

Reported by Pylint.

Missing class docstring
Error

Line: 5 Column: 1 

                  def __init__(self, *args):
        print("Base1.__init__", args)

class Clist1(Base1, list):
    pass

a = Clist1()
print(len(a))
# Not compliant - list assignment should happen in list.__init__, which is not called

Reported by Pylint.

Missing class docstring
Error

Line: 17 Column: 1 

              
print("---")

class Clist2(list, Base1):
    pass

# Not compliant - should call list.__init__, but we don't have it
#a = Clist2()
#print(len(a))

Reported by Pylint.

tests/basics/subclass_native2_tuple.py
5 issues
Missing class docstring
Error

Line: 1 Column: 1 

              class Base1:
    def __init__(self, *args):
        print("Base1.__init__", args)

class Ctuple1(Base1, tuple):
    pass

a = Ctuple1()
print(len(a))

Reported by Pylint.

Too few public methods (0/2)
Error

Line: 1 Column: 1 

              class Base1:
    def __init__(self, *args):
        print("Base1.__init__", args)

class Ctuple1(Base1, tuple):
    pass

a = Ctuple1()
print(len(a))

Reported by Pylint.

Missing module docstring
Error

Line: 1 Column: 1 

              class Base1:
    def __init__(self, *args):
        print("Base1.__init__", args)

class Ctuple1(Base1, tuple):
    pass

a = Ctuple1()
print(len(a))

Reported by Pylint.

Missing class docstring
Error

Line: 5 Column: 1 

                  def __init__(self, *args):
        print("Base1.__init__", args)

class Ctuple1(Base1, tuple):
    pass

a = Ctuple1()
print(len(a))
a = Ctuple1([1, 2, 3])

Reported by Pylint.

Missing class docstring
Error

Line: 15 Column: 1 

              
print("---")

class Ctuple2(tuple, Base1):
    pass

a = Ctuple2()
print(len(a))
a = Ctuple2([1, 2, 3])

Reported by Pylint.

tests/extmod/usocket_udp_nonblock.py
5 issues
Consider explicitly re-raising using the 'from' keyword
Error

Line: 10 Column: 9 

                      import socket, errno
    except ImportError:
        print("SKIP")
        raise SystemExit


s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.bind(socket.getaddrinfo("127.0.0.1", 8000)[0][-1])
s.settimeout(0)

Reported by Pylint.

Missing module docstring
Error

Line: 1 Column: 1 

              # test non-blocking UDP sockets

try:
    import usocket as socket, uerrno as errno
except ImportError:
    try:
        import socket, errno
    except ImportError:
        print("SKIP")

Reported by Pylint.

Multiple imports on one line (usocket, uerrno)
Error

Line: 4 Column: 5 

              # test non-blocking UDP sockets

try:
    import usocket as socket, uerrno as errno
except ImportError:
    try:
        import socket, errno
    except ImportError:
        print("SKIP")

Reported by Pylint.

Multiple imports on one line (socket, errno)
Error

Line: 7 Column: 9 

                  import usocket as socket, uerrno as errno
except ImportError:
    try:
        import socket, errno
    except ImportError:
        print("SKIP")
        raise SystemExit

Reported by Pylint.

Variable name "er" doesn't conform to snake_case naming style
Error

Line: 19 Column: 1 

              
try:
    s.recv(1)
except OSError as er:
    print("EAGAIN:", er.errno == errno.EAGAIN)

Reported by Pylint.

tests/basics/bytes.py
5 issues
Anomalous Unicode escape in byte string: '\u'. String constant might be missing an r or u prefix.
Error

Line: 5 Column: 9 

              print(b'123')
print(br'123')
print(rb'123')
print(b'\u1234')

# construction
print(bytes())
print(bytes(b'abc'))

Reported by Pylint.

Missing module docstring
Error

Line: 1 Column: 1 

              # literals
print(b'123')
print(br'123')
print(rb'123')
print(b'\u1234')

# construction
print(bytes())
print(bytes(b'abc'))

Reported by Pylint.

Constant name "a" doesn't conform to UPPER_CASE naming style
Error

Line: 14 Column: 1 

              # make sure empty bytes is converted correctly
print(str(bytes(), 'utf-8'))

a = b"123"
print(a)
print(str(a))
print(repr(a))
print(a[0], a[2])
print(a[-1])

Reported by Pylint.

Constant name "s" doesn't conform to UPPER_CASE naming style
Error

Line: 27 Column: 1 

              except TypeError:
    print("TypeError")

s = 0
for i in a:
    s += i
print(s)

Reported by Pylint.

Constant name "x" doesn't conform to UPPER_CASE naming style
Error

Line: 50 Column: 1 

              print(bytes(range(5)))

# Make sure bytes are not mistreated as unicode
x = b"\xff\x8e\xfe}\xfd\x7f"
print(len(x))
print(x[0], x[1], x[2], x[3])

# Make sure init values are not mistreated as unicode chars
# For sequence of known len

Reported by Pylint.

tests/extmod/usocket_tcp_basic.py
5 issues
Consider explicitly re-raising using the 'from' keyword
Error

Line: 10 Column: 9 

                      import socket, errno
    except ImportError:
        print("SKIP")
        raise SystemExit

# recv() on a fresh socket should raise ENOTCONN
s = socket.socket()
try:
    s.recv(1)

Reported by Pylint.

Missing module docstring
Error

Line: 1 Column: 1 

              # Test basic, stand-alone TCP socket functionality

try:
    import usocket as socket, uerrno as errno
except ImportError:
    try:
        import socket, errno
    except ImportError:
        print("SKIP")

Reported by Pylint.

Multiple imports on one line (usocket, uerrno)
Error

Line: 4 Column: 5 

              # Test basic, stand-alone TCP socket functionality

try:
    import usocket as socket, uerrno as errno
except ImportError:
    try:
        import socket, errno
    except ImportError:
        print("SKIP")

Reported by Pylint.

Multiple imports on one line (socket, errno)
Error

Line: 7 Column: 9 

                  import usocket as socket, uerrno as errno
except ImportError:
    try:
        import socket, errno
    except ImportError:
        print("SKIP")
        raise SystemExit

# recv() on a fresh socket should raise ENOTCONN

Reported by Pylint.

Variable name "er" doesn't conform to snake_case naming style
Error

Line: 16 Column: 1 

              s = socket.socket()
try:
    s.recv(1)
except OSError as er:
    print("ENOTCONN:", er.errno == errno.ENOTCONN)

Reported by Pylint.

tests/basics/subclass_native_str.py
5 issues
Missing module docstring
Error

Line: 1 Column: 1 

              # Test subclassing built-in str

class S(str):
    pass

s = S('hello')
print(s == 'hello')
print('hello' == s)
print(s == 'Hello')

Reported by Pylint.

Class name "S" doesn't conform to PascalCase naming style
Error

Line: 3 Column: 1 

              # Test subclassing built-in str

class S(str):
    pass

s = S('hello')
print(s == 'hello')
print('hello' == s)
print(s == 'Hello')

Reported by Pylint.

Missing class docstring
Error

Line: 3 Column: 1 

              # Test subclassing built-in str

class S(str):
    pass

s = S('hello')
print(s == 'hello')
print('hello' == s)
print(s == 'Hello')

Reported by Pylint.

Comparison should be s == 'hello'
Error

Line: 8 Column: 7 

              
s = S('hello')
print(s == 'hello')
print('hello' == s)
print(s == 'Hello')
print('Hello' == s)

Reported by Pylint.

Comparison should be s == 'Hello'
Error

Line: 10 Column: 7 

              print(s == 'hello')
print('hello' == s)
print(s == 'Hello')
print('Hello' == s)

Reported by Pylint.

tests/basics/syntaxerror.py
5 issues
Consider explicitly re-raising using the 'from' keyword
Error

Line: 7 Column: 5 

                  exec
except NameError:
    print("SKIP")
    raise SystemExit

def test_syntax(code):
    try:
        exec(code)
        print("no SyntaxError")

Reported by Pylint.

Use of exec
Error

Line: 11 Column: 9 

              
def test_syntax(code):
    try:
        exec(code)
        print("no SyntaxError")
    except IndentationError:
        print("IndentationError")
    except SyntaxError:
        print("SyntaxError")

Reported by Pylint.

Use of exec detected.
Security

Line: 11
Suggestion: https://bandit.readthedocs.io/en/latest/plugins/b102_exec_used.html 

              
def test_syntax(code):
    try:
        exec(code)
        print("no SyntaxError")
    except IndentationError:
        print("IndentationError")
    except SyntaxError:
        print("SyntaxError")

Reported by Bandit.

Missing module docstring
Error

Line: 1 Column: 1 

              # test syntax errors

try:
    exec
except NameError:
    print("SKIP")
    raise SystemExit

def test_syntax(code):

Reported by Pylint.

Missing function or method docstring
Error

Line: 9 Column: 1 

                  print("SKIP")
    raise SystemExit

def test_syntax(code):
    try:
        exec(code)
        print("no SyntaxError")
    except IndentationError:
        print("IndentationError")

Reported by Pylint.