Code quality

src/api.py

@@ -57,6 +57,8 @@
 For further examples please reference `.tests.test_api`.
 """
 
+# pylint: disable=too-many-lines,relative-import
+
 import base64
 import errno
 import hashlib
@@ -112,48 +114,48 @@ class ErrorCodes(type):
         0: 'Invalid command parameters number',
         1: 'The specified passphrase is blank.',
         2: 'The address version number currently must be 3, 4, or 0'
-        ' (which means auto-select).',
+           ' (which means auto-select).',
         3: 'The stream number must be 1 (or 0 which means'
-        ' auto-select). Others aren\'t supported.',
+           ' auto-select). Others aren\'t supported.',
         4: 'Why would you ask me to generate 0 addresses for you?',
         5: 'You have (accidentally?) specified too many addresses to'
-        ' make. Maximum 999. This check only exists to prevent'
-        ' mischief; if you really want to create more addresses than'
-        ' this, contact the Bitmessage developers and we can modify'
-        ' the check or you can do it yourself by searching the source'
-        ' code for this message.',
+           ' make. Maximum 999. This check only exists to prevent'
+           ' mischief; if you really want to create more addresses than'
+           ' this, contact the Bitmessage developers and we can modify'
+           ' the check or you can do it yourself by searching the source'
+           ' code for this message.',
         6: 'The encoding type must be 2 or 3.',
         7: 'Could not decode address',
         8: 'Checksum failed for address',
         9: 'Invalid characters in address',
         10: 'Address version number too high (or zero)',
         11: 'The address version number currently must be 2, 3 or 4.'
-        ' Others aren\'t supported. Check the address.',
+            ' Others aren\'t supported. Check the address.',
         12: 'The stream number must be 1. Others aren\'t supported.'
-        ' Check the address.',
+            ' Check the address.',
         13: 'Could not find this address in your keys.dat file.',
         14: 'Your fromAddress is disabled. Cannot send.',
         15: 'Invalid ackData object size.',
         16: 'You are already subscribed to that address.',
         17: 'Label is not valid UTF-8 data.',
         18: 'Chan name does not match address.',
         19: 'The length of hash should be 32 bytes (encoded in hex'
-        ' thus 64 characters).',
+            ' thus 64 characters).',
         20: 'Invalid method:',
         21: 'Unexpected API Failure',
         22: 'Decode error',
         23: 'Bool expected in eighteenByteRipe',
         24: 'Chan address is already present.',
         25: 'Specified address is not a chan address.'
-        ' Use deleteAddress API call instead.',
+            ' Use deleteAddress API call instead.',
         26: 'Malformed varint in address: ',
         27: 'Message is too long.',
         28: 'Invalid parameter'
     }
 
     def __new__(mcs, name, bases, namespace):
         result = super(ErrorCodes, mcs).__new__(mcs, name, bases, namespace)
-        for code in six.iteritems(mcs._CODES):
+        for code in six.iteritems(mcs._CODES):  # pylint: disable=no-member
             # beware: the formatting is adjusted for list-table
             result.__doc__ += """   * - %04i
          - %s
@@ -466,6 +468,7 @@ def APIAuthenticateClient(self):
 class BMRPCDispatcher(object):
     """This class is used to dispatch API commands"""
 
+    # pylint: disable=inconsistent-return-statements
     @staticmethod
     def _decode(text, decode_type):
         try:
@@ -722,8 +725,8 @@ def HandleDeleteWhitelistEntry(self, address):
 
     @command('createRandomAddress')
     def HandleCreateRandomAddress(
-        self, label, eighteenByteRipe=False, totalDifficulty=0,
-        smallMessageDifficulty=0
+            self, label, eighteenByteRipe=False, totalDifficulty=0,
+            smallMessageDifficulty=0
     ):
         """
         Create one address using the random number generator.
@@ -763,9 +766,9 @@ def HandleCreateRandomAddress(
 
     @command('createDeterministicAddresses')
     def HandleCreateDeterministicAddresses(
-        self, passphrase, numberOfAddresses=1, addressVersionNumber=0,
-        streamNumber=0, eighteenByteRipe=False, totalDifficulty=0,
-        smallMessageDifficulty=0
+            self, passphrase, numberOfAddresses=1, addressVersionNumber=0,
+            streamNumber=0, eighteenByteRipe=False, totalDifficulty=0,
+            smallMessageDifficulty=0
     ):
         """
         Create many addresses deterministically using the passphrase.
@@ -1190,8 +1193,8 @@ def HandleTrashSentMessage(self, msgid):
 
     @command('sendMessage')
     def HandleSendMessage(
-        self, toAddress, fromAddress, subject, message,
-        encodingType=2, TTL=4 * 24 * 60 * 60
+            self, toAddress, fromAddress, subject, message,
+            encodingType=2, TTL=4 * 24 * 60 * 60
     ):
         """
         Send the message and return ackdata (hex encoded string).
@@ -1242,7 +1245,7 @@ def HandleSendMessage(
 
     @command('sendBroadcast')
     def HandleSendBroadcast(
-        self, fromAddress, subject, message, encodingType=2,
+            self, fromAddress, subject, message, encodingType=2,
             TTL=4 * 24 * 60 * 60):
         """Send the broadcast message. Similiar to *sendMessage*."""
 
@@ -1361,9 +1364,9 @@ def ListSubscriptions(self):
 
     @command('disseminatePreEncryptedMsg', 'disseminatePreparedObject')
     def HandleDisseminatePreparedObject(
-        self, encryptedPayload,
-        nonceTrialsPerByte=networkDefaultProofOfWorkNonceTrialsPerByte,
-        payloadLengthExtraBytes=networkDefaultPayloadLengthExtraBytes
+            self, encryptedPayload,
+            nonceTrialsPerByte=networkDefaultProofOfWorkNonceTrialsPerByte,
+            payloadLengthExtraBytes=networkDefaultPayloadLengthExtraBytes
     ):
         """
         Handle a request to disseminate an encrypted message.

src/bitmessagemain.py

@@ -11,6 +11,7 @@
 # yet contain logic to expand into further streams.
 
 # flake8: noqa:402
+# pylint: disable=superfluous-parens
 import os
 import sys
 

src/bitmessageqt/settings.py

@@ -176,12 +176,12 @@
 
         if self._proxy_type:
             for node, info in six.iteritems(
-                knownnodes.knownNodes.get(
+                    knownnodes.knownNodes.get(
                     min(connectionpool.pool.streams), [])
             ):
                 if (
-                    node.host.endswith('.onion') and len(node.host) > 22
-                    and not info.get('self')
+                        node.host.endswith('.onion') and len(node.host) > 22
+                        and not info.get('self')
                 ):
                     break
             else:
@@ -346,9 +346,10 @@
         if valid:
             self.save_font_setting(font)
 
+    # pylint: disable=too-many-branches,too-many-statements
+    # pylint: too-many-locals
     def accept(self):
         """A callback for accepted event of buttonBox (OK button pressed)"""
-        # pylint: disable=too-many-branches,too-many-statements
         super(SettingsDialog, self).accept()
         if self.firstrun:
             self.config.remove_option('bitmessagesettings', 'dontconnect')
@@ -374,7 +375,7 @@
 
         window_style = str(self.comboBoxStyle.currentText())
         if self.app.get_windowstyle() != window_style or self.config.safeGet(
-            'bitmessagesettings', 'font'
+                'bitmessagesettings', 'font'
         ) != self.font_setting:
             self.config.set('bitmessagesettings', 'windowstyle', window_style)
             self.config.set('bitmessagesettings', 'font', self.font_setting)
@@ -455,8 +456,8 @@
         self.config.set('bitmessagesettings', 'sockslisten', str(
             self.checkBoxSocksListen.isChecked()))
         if (
-            self.checkBoxOnionOnly.isChecked()
-            and not self.config.safeGetBoolean(
+                self.checkBoxOnionOnly.isChecked()
+                and not self.config.safeGetBoolean(
                 'bitmessagesettings', 'onionservicesonly')
         ):
             self.net_restart_needed = True
@@ -519,40 +520,39 @@
 
         acceptableDifficultyChanged = False
 
-        if (
-            float(self.lineEditMaxAcceptableTotalDifficulty.text()) >= 1
-            or float(self.lineEditMaxAcceptableTotalDifficulty.text()) == 0
-        ):
+        max_total_diff = float(
+            self.lineEditMaxAcceptableTotalDifficulty.text())
+        if max_total_diff >= 1 or max_total_diff == 0:
+            nonce_trials = str(int(
+                max_total_diff
+                * defaults.networkDefaultProofOfWorkNonceTrialsPerByte))
             if self.config.get(
-                    'bitmessagesettings', 'maxacceptablenoncetrialsperbyte'
-            ) != str(int(
-                float(self.lineEditMaxAcceptableTotalDifficulty.text())
-                    * defaults.networkDefaultProofOfWorkNonceTrialsPerByte)):
+                    'bitmessagesettings',
+                    'maxacceptablenoncetrialsperbyte'
+            ) != nonce_trials:
                 # the user changed the max acceptable total difficulty
                 acceptableDifficultyChanged = True
                 self.config.set(
-                    'bitmessagesettings', 'maxacceptablenoncetrialsperbyte',
-                    str(int(
-                        float(self.lineEditMaxAcceptableTotalDifficulty.text())
-                        * defaults.networkDefaultProofOfWorkNonceTrialsPerByte))
-                )
-        if (
-            float(self.lineEditMaxAcceptableSmallMessageDifficulty.text()) >= 1
-            or float(self.lineEditMaxAcceptableSmallMessageDifficulty.text()) == 0
-        ):
+                    'bitmessagesettings',
+                    'maxacceptablenoncetrialsperbyte',
+                    nonce_trials)
+
+        max_msg_diff = float(
+            self.lineEditMaxAcceptableSmallMessageDifficulty.text())
+        if max_msg_diff >= 1 or max_msg_diff == 0:
+            extra_bytes = str(int(
+                max_msg_diff
+                * defaults.networkDefaultPayloadLengthExtraBytes))
             if self.config.get(
-                    'bitmessagesettings', 'maxacceptablepayloadlengthextrabytes'
-            ) != str(int(
-                float(self.lineEditMaxAcceptableSmallMessageDifficulty.text())
-                    * defaults.networkDefaultPayloadLengthExtraBytes)):
+                    'bitmessagesettings',
+                    'maxacceptablepayloadlengthextrabytes'
+            ) != extra_bytes:
                 # the user changed the max acceptable small message difficulty
                 acceptableDifficultyChanged = True
                 self.config.set(
-                    'bitmessagesettings', 'maxacceptablepayloadlengthextrabytes',
-                    str(int(
-                        float(self.lineEditMaxAcceptableSmallMessageDifficulty.text())
-                        * defaults.networkDefaultPayloadLengthExtraBytes))
-                )
+                    'bitmessagesettings',
+                    'maxacceptablepayloadlengthextrabytes',
+                    extra_bytes)
         if acceptableDifficultyChanged:
             # It might now be possible to send msgs which were previously
             # marked as toodifficult. Let us change them to 'msgqueued'.
@@ -629,8 +629,8 @@
         self.parent.updateStartOnLogon()
 
         if (
-            state.appdata != paths.lookupExeFolder()
-            and self.checkBoxPortableMode.isChecked()
+                state.appdata != paths.lookupExeFolder()
+                and self.checkBoxPortableMode.isChecked()
         ):
             # If we are NOT using portable mode now but the user selected
             # that we should...
@@ -652,8 +652,8 @@
                 pass
 
         if (
-            state.appdata == paths.lookupExeFolder()
-            and not self.checkBoxPortableMode.isChecked()
+                state.appdata == paths.lookupExeFolder()
+                and not self.checkBoxPortableMode.isChecked()
         ):
             # If we ARE using portable mode now but the user selected
             # that we shouldn't...

src/bmconfigparser.py

@@ -128,7 +128,7 @@ def save(self):
             shutil.copyfile(fileName, fileNameBak)
             # The backup succeeded.
             fileNameExisted = True
-        except(IOError, Exception):
+        except (IOError, Exception):
             # The backup failed. This can happen if the file
             # didn't exist before.
             fileNameExisted = False

src/class_addressGenerator.py

@@ -32,10 +32,10 @@ def stopThread(self):
 
         super(addressGenerator, self).stopThread()
 
+    # pylint: disable=too-many-arguments,too-many-positional-arguments
     def save_address(
-        # pylint: disable=too-many-arguments,too-many-positional-arguments
-        self, version, stream, ripe, label, signing_key, encryption_key,
-        nonceTrialsPerByte, payloadLengthExtraBytes
+            self, version, stream, ripe, label, signing_key, encryption_key,
+            nonceTrialsPerByte, payloadLengthExtraBytes
     ):
         """Write essential address config values and reload cryptors"""
         address = encodeAddress(version, stream, ripe)
@@ -183,8 +183,8 @@ def run(self):
                     ripe = highlevelcrypto.to_ripe(
                         pubSigningKey, potentialPubEncryptionKey)
                     if (
-                        ripe[:numberOfNullBytesDemandedOnFrontOfRipeHash]
-                        == b'\x00' * numberOfNullBytesDemandedOnFrontOfRipeHash
+                            ripe[:numberOfNullBytesDemandedOnFrontOfRipeHash]
+                            == b'\x00' * numberOfNullBytesDemandedOnFrontOfRipeHash
                     ):
                         break
                 self.logger.info(

src/class_singleWorker.py

@@ -221,9 +221,9 @@ def _getKeysForAddress(self, address):
 
     @classmethod
     def _doPOWDefaults(
-        cls, payload, TTL,
-        nonceTrialsPerByte=None, payloadLengthExtraBytes=None,
-        log_prefix='', log_time=False
+            cls, payload, TTL,
+            nonceTrialsPerByte=None, payloadLengthExtraBytes=None,
+            log_prefix='', log_time=False
     ):
         if not nonceTrialsPerByte:
             nonceTrialsPerByte = \
@@ -755,9 +755,9 @@ def sendMsg(self):
             # in our keys.dat file.
             elif config.has_section(toaddress):
                 if not sqlExecute(
-                    '''UPDATE sent SET status='doingmsgpow' '''
-                    ''' WHERE toaddress=? AND status='msgqueued' AND folder='sent' ''',
-                    toaddress
+                        '''UPDATE sent SET status='doingmsgpow' '''
+                        ''' WHERE toaddress=? AND status='msgqueued' AND folder='sent' ''',
+                        toaddress
                 ):
                     continue
                 status = 'doingmsgpow'

src/helper_search.py

@@ -8,8 +8,8 @@
 
 
 def search_sql(
-    xAddress='toaddress', account=None, folder='inbox', where=None,
-    what=None, unreadOnly=False
+        xAddress='toaddress', account=None, folder='inbox', where=None,
+        what=None, unreadOnly=False
 ):
     """
     Search for messages from given account and folder having search term
@@ -88,24 +88,24 @@ def check_match(
         return True
 
     if where in (
-        _translate("MainWindow", "To"), _translate("MainWindow", "All")
+            _translate("MainWindow", "To"), _translate("MainWindow", "All")
     ):
         if what.lower() not in toAddress.lower():
             return False
     elif where in (
-        _translate("MainWindow", "From"), _translate("MainWindow", "All")
+            _translate("MainWindow", "From"), _translate("MainWindow", "All")
     ):
         if what.lower() not in fromAddress.lower():
             return False
     elif where in (
-        _translate("MainWindow", "Subject"),
-        _translate("MainWindow", "All")
+            _translate("MainWindow", "Subject"),
+            _translate("MainWindow", "All")
     ):
         if what.lower() not in subject.lower():
             return False
     elif where in (
-        _translate("MainWindow", "Message"),
-        _translate("MainWindow", "All")
+            _translate("MainWindow", "Message"),
+            _translate("MainWindow", "All")
     ):
         if what.lower() not in message.lower():
             return False

src/main-android-live.py

@@ -1,4 +1,5 @@
 """This module is for thread start."""
+# pylint: disable=superfluous-parens
 import state
 import sys
 from bitmessagemain import main