Fixing NX-OS issue with double slashes and SCP (#1727)

netmiko/cisco/cisco_nxos_ssh.py

@@ -89,19 +89,19 @@ def remote_file_size(self, remote_cmd="", remote_file=None):
             remote_cmd = f"dir {self.file_system}/{remote_file}"
 
         remote_out = self.ssh_ctl_chan.send_command(remote_cmd)
+        if re.search("no such file or directory", remote_out, flags=re.I):
+            raise IOError("Unable to find file on remote system")
         # Match line containing file name
         escape_file_name = re.escape(remote_file)
         pattern = r".*({}).*".format(escape_file_name)
         match = re.search(pattern, remote_out)
         if match:
             file_size = match.group(0)
             file_size = file_size.split()[0]
-
-        if "No such file or directory" in remote_out:
-            raise IOError("Unable to find file on remote system")
-        else:
             return int(file_size)
 
+        raise IOError("Unable to find file on remote system")
+
     @staticmethod
     def process_md5(md5_output, pattern=r"= (.*)"):
         """Not needed on NX-OS."""

netmiko/ssh_autodetect.py

@@ -315,7 +315,7 @@ def _send_command_wrapper(self, cmd):
             return cached_results
 
     def _autodetect_remote_version(
-        self, search_patterns=None, re_flags=re.I, priority=99
+        self, search_patterns=None, re_flags=re.IGNORECASE, priority=99
     ):
         """
         Method to try auto-detect the device type, by matching a regular expression on the reported
@@ -350,7 +350,9 @@ def _autodetect_remote_version(
             return 0
         return 0
 
-    def _autodetect_std(self, cmd="", search_patterns=None, re_flags=re.I, priority=99):
+    def _autodetect_std(
+        self, cmd="", search_patterns=None, re_flags=re.IGNORECASE, priority=99
+    ):
         """
         Standard method to try to auto-detect the device type. This method will be called for each
         device_type present in SSH_MAPPER_BASE dict ('dispatch' key). It will attempt to send a