From 905b1bfd6e90f0fd6a2d4f0afa08f8ddebc4f488 Mon Sep 17 00:00:00 2001
From: David Lord <davidism@gmail.com>
Date: Sun, 26 Sep 2021 07:04:19 -0700
Subject: use exception chaining

fixes flake8-bugbear B904
---
 src/click/_termui_impl.py | 2 +-
 src/click/core.py         | 2 +-
 src/click/decorators.py   | 2 +-
 src/click/globals.py      | 4 ++--
 src/click/termui.py       | 8 ++++----
 src/click/utils.py        | 2 +-
 6 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/click/_termui_impl.py b/src/click/_termui_impl.py
index c860101..39c1d08 100644
--- a/src/click/_termui_impl.py
+++ b/src/click/_termui_impl.py
@@ -498,7 +498,7 @@ class Editor:
         except OSError as e:
             raise ClickException(
                 _("{editor}: Editing failed: {e}").format(editor=editor, e=e)
-            )
+            ) from e
 
     def edit(self, text: t.Optional[t.AnyStr]) -> t.Optional[t.AnyStr]:
         import tempfile
diff --git a/src/click/core.py b/src/click/core.py
index a1568bd..5bbc90c 100644
--- a/src/click/core.py
+++ b/src/click/core.py
@@ -1061,7 +1061,7 @@ class BaseCommand:
                     ctx.exit()
             except (EOFError, KeyboardInterrupt):
                 echo(file=sys.stderr)
-                raise Abort()
+                raise Abort() from None
             except ClickException as e:
                 if not standalone_mode:
                     raise
diff --git a/src/click/decorators.py b/src/click/decorators.py
index fa8c6f7..f1cc005 100644
--- a/src/click/decorators.py
+++ b/src/click/decorators.py
@@ -380,7 +380,7 @@ def version_option(
                 raise RuntimeError(
                     f"{package_name!r} is not installed. Try passing"
                     " 'package_name' instead."
-                )
+                ) from None
 
         if version is None:
             raise RuntimeError(
diff --git a/src/click/globals.py b/src/click/globals.py
index cfcade1..a7b0c93 100644
--- a/src/click/globals.py
+++ b/src/click/globals.py
@@ -36,9 +36,9 @@ def get_current_context(silent: bool = False) -> t.Optional["Context"]:
     """
     try:
         return t.cast("Context", _local.stack[-1])
-    except (AttributeError, IndexError):
+    except (AttributeError, IndexError) as e:
         if not silent:
-            raise RuntimeError("There is no active click context.")
+            raise RuntimeError("There is no active click context.") from e
 
     return None
 
diff --git a/src/click/termui.py b/src/click/termui.py
index 034fe6e..08fd898 100644
--- a/src/click/termui.py
+++ b/src/click/termui.py
@@ -147,7 +147,7 @@ def prompt(
             # A doc bug has been filed at https://bugs.python.org/issue24711
             if hide_input:
                 echo(None, err=err)
-            raise Abort()
+            raise Abort() from None
 
     if value_proc is None:
         value_proc = convert_type(type, default)
@@ -234,7 +234,7 @@ def confirm(
             echo(prompt, nl=False, err=err)
             value = visible_prompt_func("").lower().strip()
         except (KeyboardInterrupt, EOFError):
-            raise Abort()
+            raise Abort() from None
         if value in ("y", "yes"):
             rv = True
         elif value in ("n", "no"):
@@ -581,13 +581,13 @@ def style(
         try:
             bits.append(f"\033[{_interpret_color(fg)}m")
         except KeyError:
-            raise TypeError(f"Unknown color {fg!r}")
+            raise TypeError(f"Unknown color {fg!r}") from None
 
     if bg:
         try:
             bits.append(f"\033[{_interpret_color(bg, 10)}m")
         except KeyError:
-            raise TypeError(f"Unknown color {bg!r}")
+            raise TypeError(f"Unknown color {bg!r}") from None
 
     if bold is not None:
         bits.append(f"\033[{1 if bold else 22}m")
diff --git a/src/click/utils.py b/src/click/utils.py
index 91a372d..16033d6 100644
--- a/src/click/utils.py
+++ b/src/click/utils.py
@@ -154,7 +154,7 @@ class LazyFile:
         except OSError as e:  # noqa: E402
             from .exceptions import FileError
 
-            raise FileError(self.name, hint=e.strerror)
+            raise FileError(self.name, hint=e.strerror) from e
         self._f = rv
         return rv
 
-- 
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