Check for stdout/stderr in case file descriptor is closed (#1620)

Author: julien-lecomte

src/pipx/animate.py

@@ -7,7 +7,7 @@
 from pipx.constants import WINDOWS
 from pipx.emojis import EMOJI_SUPPORT
 
-stderr_is_tty = sys.stderr.isatty()
+stderr_is_tty = bool(sys.stderr and sys.stderr.isatty())
 
 CLEAR_LINE = "\033[K"
 EMOJI_ANIMATION_FRAMES = ["⣷", "⣯", "⣟", "⡿", "⢿", "⣻", "⣽", "⣾"]

src/pipx/colors.py

@@ -6,7 +6,7 @@
 except ImportError:  # Colorama is Windows only package
     colorama = None
 
-PRINT_COLOR = sys.stdout.isatty()
+PRINT_COLOR = bool(sys.stdout and sys.stdout.isatty())
 
 if PRINT_COLOR and colorama:
     colorama.init()

src/pipx/main.py

@@ -1050,7 +1050,7 @@ def setup_log_file() -> Path:
 
 
 def setup_logging(verbose: int) -> None:
-    pipx_str = bold(green("pipx >")) if sys.stdout.isatty() else "pipx >"
+    pipx_str = (sys.stdout and sys.stdout.isatty() and bold(green("pipx >"))) or "pipx >"
     paths.ctx.log_file = setup_log_file()
 
     # Determine logging level, a value between 0 and 50