diff --git a/requirements.txt b/requirements.txt
index 2ecb7b0efe2..a115f5dccb4 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -18,6 +18,6 @@ parameterized==0.6.1
 beautifulsoup4>=4.6.0
 pyotp>=2.2.6
 boto>=2.49.0
-flake8==3.5.0
+flake8==3.6.0
 PyVirtualDisplay==0.2.1
 -e .
diff --git a/seleniumbase/common/encryption.py b/seleniumbase/common/encryption.py
index c2bbcfe5697..93373a0fc60 100755
--- a/seleniumbase/common/encryption.py
+++ b/seleniumbase/common/encryption.py
@@ -118,18 +118,18 @@ def decrypt(string):
             rem4 = (len(string) + ord_string_sum(string)) % 2
         if len(string) % 2 != 0:
             if rem3 == 1:
-                string = (chr(ord(string[-1]) - 5 - rem1) + string +
-                          chr(ord(string[-1]) - 13 - rem1))
+                string = (chr(ord(string[-1]) - 5 - rem1) + string + ''
+                          '' + chr(ord(string[-1]) - 13 - rem1))
             else:
-                string = (chr(ord(string[-1]) - 11 - rem1) + string +
-                          chr(ord(string[-1]) - 23 - rem1))
+                string = (chr(ord(string[-1]) - 11 - rem1) + string + ''
+                          '' + chr(ord(string[-1]) - 23 - rem1))
         elif len(string) > 1:
             if rem4 == 1:
-                string = (chr(ord(string[0]) - 19 + rem2) + string +
-                          chr(ord(string[0]) - 7 - rem2))
+                string = (chr(ord(string[0]) - 19 + rem2) + string + ''
+                          '' + chr(ord(string[0]) - 7 - rem2))
             else:
-                string = (chr(ord(string[0]) - 26 + rem2) + string +
-                          chr(ord(string[0]) - 12 - rem2))
+                string = (chr(ord(string[0]) - 26 + rem2) + string + ''
+                          '' + chr(ord(string[0]) - 12 - rem2))
         rem5 = (len(string) + ord_string_sum(string)) % 23
         string = rotate(string, rem5)
         result = str_xor(shuffle_string(string)[::-1], xor_key)
diff --git a/seleniumbase/core/s3_manager.py b/seleniumbase/core/s3_manager.py
index d6f18335d4d..27206515b0f 100755
--- a/seleniumbase/core/s3_manager.py
+++ b/seleniumbase/core/s3_manager.py
@@ -64,7 +64,7 @@ def upload_index_file(self, test_address, timestamp):
         index = self.get_key(file_name)
         index_str = []
         for completed_file in already_uploaded_files:
-            index_str.append("<a href='" + self.bucket_url +
+            index_str.append("<a href='" + self.bucket_url + ""
                              "%s'>%s</a>" % (completed_file, completed_file))
         index.set_contents_from_string(
             "<br>".join(index_str),
diff --git a/seleniumbase/core/tour_helper.py b/seleniumbase/core/tour_helper.py
index 256abf56c56..4f362d6e9ae 100755
--- a/seleniumbase/core/tour_helper.py
+++ b/seleniumbase/core/tour_helper.py
@@ -278,8 +278,8 @@ def play_shepherd_tour(driver, tour_steps, msg_dur, name=None, interval=0):
                     stop_ms = start_ms + (interval * 1000.0)
                 now_ms = time.time() * 1000.0
                 if now_ms >= stop_ms:
-                    if ((element == latest_element) and
-                            (shep_text == latest_text)):
+                    if ((element == latest_element) and (
+                            shep_text == latest_text)):
                         driver.execute_script("Shepherd.activeTour.next()")
                         try:
                             latest_element = driver.execute_script(
diff --git a/seleniumbase/fixtures/base_case.py b/seleniumbase/fixtures/base_case.py
index d4952026626..ec5c1d79e87 100755
--- a/seleniumbase/fixtures/base_case.py
+++ b/seleniumbase/fixtures/base_case.py
@@ -2793,9 +2793,9 @@ def tearDown(self):
                     test_logpath = self.log_path + "/" + test_id
                     if not os.path.exists(test_logpath):
                         os.makedirs(test_logpath)
-                    if ((not self.with_screen_shots) and
-                            (not self.with_basic_test_info) and
-                            (not self.with_page_source)):
+                    if ((not self.with_screen_shots) and (
+                            not self.with_basic_test_info) and (
+                            not self.with_page_source)):
                         # Log everything if nothing specified (if testing_base)
                         log_helper.log_screenshot(test_logpath, self.driver)
                         log_helper.log_test_failure_data(
diff --git a/seleniumbase/fixtures/email_manager.py b/seleniumbase/fixtures/email_manager.py
index 74f0f83a77c..6581775aea6 100755
--- a/seleniumbase/fixtures/email_manager.py
+++ b/seleniumbase/fixtures/email_manager.py
@@ -478,7 +478,7 @@ def fixup(text):
                 except KeyError:
                     pass
             return text  # leave as is
-        return re.sub("&#?\w+;", fixup, html)
+        return re.sub(r"&#?\w+;", fixup, html)
 
     def decode_quoted_printable(self, html):
         """
diff --git a/seleniumbase/fixtures/js_utils.py b/seleniumbase/fixtures/js_utils.py
index 86a51829b42..19909dbf67f 100755
--- a/seleniumbase/fixtures/js_utils.py
+++ b/seleniumbase/fixtures/js_utils.py
@@ -129,8 +129,8 @@ def activate_jquery(driver):
 
 
 def are_quotes_escaped(string):
-    if (string.count("\\'") != string.count("'") or
-            string.count('\\"') != string.count('"')):
+    if (string.count("\\'") != string.count("'") or (
+            string.count('\\"') != string.count('"'))):
         return True
     return False
 
diff --git a/seleniumbase/fixtures/page_utils.py b/seleniumbase/fixtures/page_utils.py
index f0d2932094c..822f34915b5 100755
--- a/seleniumbase/fixtures/page_utils.py
+++ b/seleniumbase/fixtures/page_utils.py
@@ -24,9 +24,8 @@ def is_xpath_selector(selector):
     """
     A basic method to determine if a selector is an xpath selector.
     """
-    if (selector.startswith('/') or
-            selector.startswith('./') or
-            selector.startswith('(')):
+    if (selector.startswith('/') or selector.startswith('./') or (
+            selector.startswith('('))):
         return True
     return False
 
@@ -35,8 +34,7 @@ def is_link_text_selector(selector):
     """
     A basic method to determine if a selector is a link text selector.
     """
-    if (selector.startswith('link=') or
-            selector.startswith('link_text=')):
+    if (selector.startswith('link=') or selector.startswith('link_text=')):
         return True
     return False
 
diff --git a/seleniumbase/fixtures/xpath_to_css.py b/seleniumbase/fixtures/xpath_to_css.py
index dd8badffc4c..ce58deabbd7 100755
--- a/seleniumbase/fixtures/xpath_to_css.py
+++ b/seleniumbase/fixtures/xpath_to_css.py
@@ -5,27 +5,27 @@
 import re
 
 _sub_regexes = {
-    "tag": "([a-zA-Z][a-zA-Z0-9]{0,10}|\*)",
-    "attribute": "[.a-zA-Z_:][-\w:.]*(\(\))?)",
-    "value": "\s*[\w/:][-/\w\s,:;.]*"
+    "tag": r"([a-zA-Z][a-zA-Z0-9]{0,10}|\*)",
+    "attribute": r"[.a-zA-Z_:][-\w:.]*(\(\))?)",
+    "value": r"\s*[\w/:][-/\w\s,:;.]*"
 }
 
 _validation_re = (
-    "(?P<node>"
-    "("
-    "^id\([\"\']?(?P<idvalue>%(value)s)[\"\']?\)"
-    "|"
-    "(?P<nav>//?)(?P<tag>%(tag)s)"
-    "(\[("
-    "(?P<matched>(?P<mattr>@?%(attribute)s=[\"\']"
-    "(?P<mvalue>%(value)s))[\"\']"
-    "|"
-    "(?P<contained>contains\((?P<cattr>@?%(attribute)s,\s*[\"\']"
-    "(?P<cvalue>%(value)s)[\"\']\))"
-    ")\])?"
-    "(\[(?P<nth>\d)\])?"
-    ")"
-    ")" % _sub_regexes
+    r"(?P<node>"
+    r"("
+    r"^id\([\"\']?(?P<idvalue>%(value)s)[\"\']?\)"
+    r"|"
+    r"(?P<nav>//?)(?P<tag>%(tag)s)"
+    r"(\[("
+    r"(?P<matched>(?P<mattr>@?%(attribute)s=[\"\']"
+    r"(?P<mvalue>%(value)s))[\"\']"
+    r"|"
+    r"(?P<contained>contains\((?P<cattr>@?%(attribute)s,\s*[\"\']"
+    r"(?P<cvalue>%(value)s)[\"\']\))"
+    r")\])?"
+    r"(\[(?P<nth>\d)\])?"
+    r")"
+    r")" % _sub_regexes
 )
 
 prog = re.compile(_validation_re)
@@ -136,11 +136,11 @@ def convert_xpath_to_css(xpath):
 
     css = _get_raw_css_from_xpath(xpath)
 
-    attribute_defs = re.findall('(\[\w+\=\S+\])', css)
+    attribute_defs = re.findall(r'(\[\w+\=\S+\])', css)
     for attr_def in attribute_defs:
-        if (attr_def.count('[') == 1 and attr_def.count(']') == 1 and
-                attr_def.count('=') == 1 and attr_def.count('"') == 0 and
-                attr_def.count("'") == 0) and attr_def.count(' ') == 0:
+        if (attr_def.count('[') == 1 and attr_def.count(']') == 1 and (
+                attr_def.count('=') == 1) and attr_def.count('"') == 0 and (
+                attr_def.count("'") == 0)) and attr_def.count(' ') == 0:
             # Now safe to manipulate
             q1 = attr_def.find('=') + 1
             q2 = attr_def.find(']')
diff --git a/seleniumbase/plugins/base_plugin.py b/seleniumbase/plugins/base_plugin.py
index c144ebffe79..ca522c604f2 100755
--- a/seleniumbase/plugins/base_plugin.py
+++ b/seleniumbase/plugins/base_plugin.py
@@ -122,9 +122,9 @@ def __log_all_options_if_none_specified(self, test):
         specified (basic_test_info, screen_shots, page_source), then save them
         all by default. Otherwise, save only selected ones from their plugins.
         """
-        if ((not self.options.enable_plugin_basic_test_info) and
-                (not self.options.enable_plugin_screen_shots) and
-                (not self.options.enable_plugin_page_source)):
+        if ((not self.options.enable_plugin_basic_test_info) and (
+                not self.options.enable_plugin_screen_shots) and (
+                not self.options.enable_plugin_page_source)):
             test_logpath = self.options.log_path + "/" + test.id()
             log_helper.log_screenshot(test_logpath, test.driver)
             log_helper.log_test_failure_data(
@@ -165,9 +165,9 @@ def addError(self, test, err, capt=None):
         error states, we want to make sure that they don't show up in
         the nose output as errors.
         """
-        if (err[0] == errors.BlockedTest or
-                err[0] == errors.SkipTest or
-                err[0] == errors.DeprecatedTest):
+        if (err[0] == errors.BlockedTest or (
+                err[0] == errors.SkipTest) or (
+                err[0] == errors.DeprecatedTest)):
             print(err[1].__str__().split('''-------------------- >> '''
                                          '''begin captured logging'''
                                          ''' << --------------------''', 1)[0])
diff --git a/seleniumbase/utilities/selenium_ide/convert_ide.py b/seleniumbase/utilities/selenium_ide/convert_ide.py
index f19c0eaedc2..1828a7a295c 100755
--- a/seleniumbase/utilities/selenium_ide/convert_ide.py
+++ b/seleniumbase/utilities/selenium_ide/convert_ide.py
@@ -589,14 +589,14 @@ def main():
             selector = re.escape(selector)
             selector = js_utils.escape_quotes_if_needed(selector)
             if int(line_num) < num_lines - 1:
-                regex_string = (r'''^\s*self.click\(["|']''' +
-                                selector + r'''["|']\)\s*$''')
+                regex_string = (r'''^\s*self.click\(["|']'''
+                                '' + selector + r'''["|']\)\s*$''')
                 data2 = re.match(regex_string, lines[line_num + 1])
                 if data2:
                     continue
-                regex_string = (r'''^\s*self.update_text\(["|']''' +
-                                selector +
-                                r'''["|'], [\S\s]+\)\s*$''')
+                regex_string = (r'''^\s*self.update_text\(["|']'''
+                                '' + selector + ''
+                                '' + r'''["|'], [\S\s]+\)\s*$''')
                 data2 = re.match(regex_string, lines[line_num + 1])
                 if data2:
                     continue
@@ -617,8 +617,8 @@ def main():
             link_text = re.escape(link_text)
             link_text = js_utils.escape_quotes_if_needed(link_text)
             if int(line_num) < num_lines - 2:
-                regex_string = (r'''^\s*self.click\(["|']link=''' +
-                                link_text + r'''["|']\)\s*$''')
+                regex_string = (r'''^\s*self.click\(["|']link='''
+                                '' + link_text + r'''["|']\)\s*$''')
                 data2 = re.match(regex_string, lines[line_num + 1])
                 if data2:
                     continue
diff --git a/setup.py b/setup.py
index f2c6c06a750..ce9432498ec 100755
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@
 
 setup(
     name='seleniumbase',
-    version='1.17.1',
+    version='1.17.2',
     description='All-in-One Test Automation Framework',
     long_description=long_description,
     long_description_content_type='text/markdown',
@@ -70,7 +70,7 @@
         'beautifulsoup4>=4.6.0',  # Keep at >=4.6.0 while using bs4
         'pyotp>=2.2.6',
         'boto>=2.49.0',
-        'flake8==3.5.0',
+        'flake8==3.6.0',
         'PyVirtualDisplay==0.2.1',
     ],
     packages=[