@@ -119,16 +119,20 @@ async def task(g=None, prompt="--> "):
 pt = t # save previous time
 t = time.ticks_ms()
 if c < 0x20 or c > 0x7E:
-if c == 0x0A:
-# LF
+if c == 0x0A or c == 0x0D:
+# LF or CR (handle both for raw terminal mode compatibility)
 if paste:
+# In paste mode, preserve the actual character
 sys.stdout.write(b)
 cmd += b
 continue
-# If the previous character was also LF, and was less
-# than 20 ms ago, this was likely due to CRLF->LFLF
-# conversion, so ignore this linefeed.
-if pc == 0x0A and time.ticks_diff(t, pt) < 20:
+# Handle various newline sequences to avoid double-execution:
+# - CR+LF (Windows style): ignore LF if it follows CR quickly
+# - LF+LF (PTY double-newline): ignore second LF if it follows quickly
+# - CR+CR (potential double-CR): ignore second CR if it follows quickly
+if ((c == 0x0A and pc == 0x0D) or # LF after CR (CRLF)
+(c == 0x0A and pc == 0x0A) or # LF after LF (double LF)
+(c == 0x0D and pc == 0x0D)) and time.ticks_diff(t, pt) < 20: # CR after CR
 continue
 if curs:
 # move cursor to end of the line