From 0cc33ecfbe07210259e9ccdadae9d42d5c584b69 Mon Sep 17 00:00:00 2001
From: Alle Veenstra <alle.veenstra@gmail.com>
Date: Wed, 29 Jul 2020 11:34:03 +0200
Subject: [PATCH] Replaced the PASV response "227 Entering passive mode" with
 "227 Entering Passive Mode" (uppercased first letters).

This fixes a problem where some FTP clients would not send data, because they expected the casing to match.
---
 pyftpdlib/handlers.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pyftpdlib/handlers.py b/pyftpdlib/handlers.py
index b5613a43..446ad2d1 100644
--- a/pyftpdlib/handlers.py
+++ b/pyftpdlib/handlers.py
@@ -367,7 +367,7 @@ def __init__(self, cmd_channel, extmode=False):
                 ip = ip[7:]
             # The format of 227 response in not standardized.
             # This is the most expected:
-            resp = '227 Entering passive mode (%s,%d,%d).' % (
+            resp = '227 Entering Passive Mode (%s,%d,%d).' % (
                 ip.replace('.', ','), port // 256, port % 256)
             self.cmd_channel.respond(resp)
         else: