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-rw-r--r--pyramid/scripts/pserve.py11
1 files changed, 6 insertions, 5 deletions
diff --git a/pyramid/scripts/pserve.py b/pyramid/scripts/pserve.py
index d68075e01..57e4ab012 100644
--- a/pyramid/scripts/pserve.py
+++ b/pyramid/scripts/pserve.py
@@ -716,11 +716,12 @@ def _turn_sigterm_into_systemexit(): # pragma: no cover
def ensure_echo_on(): # pragma: no cover
if termios:
- fd = sys.stdin.fileno()
- attr_list = termios.tcgetattr(fd)
- if not attr_list[3] & termios.ECHO:
- attr_list[3] |= termios.ECHO
- termios.tcsetattr(fd, termios.TCSANOW, attr_list)
+ fd = sys.stdin
+ if fd.isatty():
+ attr_list = termios.tcgetattr(fd)
+ if not attr_list[3] & termios.ECHO:
+ attr_list[3] |= termios.ECHO
+ termios.tcsetattr(fd, termios.TCSANOW, attr_list)
def install_reloader(poll_interval=1, extra_files=None): # pragma: no cover
"""