X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/b60b85b234d6a575f636d0a125478115f993c90c..9b2b048692f0bd642f38230b4e61c778a4653f91:/autoload/black.vim

diff --git a/autoload/black.vim b/autoload/black.vim
index eec4463..4eb9b25 100644
--- a/autoload/black.vim
+++ b/autoload/black.vim
@@ -9,7 +9,7 @@ def strtobool(text):
     return True
   if text.lower() in ['n', 'no', 'f', 'false', 'off', '0']:
     return False
-  raise ValueError(f"{text} is not convertable to boolean")
+  raise ValueError(f"{text} is not convertible to boolean")
 
 class Flag(collections.namedtuple("FlagBase", "name, cast")):
   @property
@@ -34,7 +34,7 @@ FLAGS = [
 ]
 
 
-def _get_python_binary(exec_prefix):
+def _get_python_binary(exec_prefix, pyver):
   try:
     default = vim.eval("g:pymode_python").strip()
   except vim.error:
@@ -43,7 +43,15 @@ def _get_python_binary(exec_prefix):
     return default
   if sys.platform[:3] == "win":
     return exec_prefix / 'python.exe'
-  return exec_prefix / 'bin' / 'python3'
+  bin_path = exec_prefix / "bin"
+  exec_path = (bin_path / f"python{pyver[0]}.{pyver[1]}").resolve()
+  if exec_path.exists():
+    return exec_path
+  # It is possible that some environments may only have python3
+  exec_path = (bin_path / f"python3").resolve()
+  if exec_path.exists():
+    return exec_path
+  raise ValueError("python executable not found")
 
 def _get_pip(venv_path):
   if sys.platform[:3] == "win":
@@ -56,6 +64,16 @@ def _get_virtualenv_site_packages(venv_path, pyver):
   return venv_path / 'lib' / f'python{pyver[0]}.{pyver[1]}' / 'site-packages'
 
 def _initialize_black_env(upgrade=False):
+  if vim.eval("g:black_use_virtualenv ? 'true' : 'false'") == "false":
+    if upgrade:
+      print("Upgrade disabled due to g:black_use_virtualenv being disabled.")
+      print("Either use your system package manager (or pip) to upgrade black separately,")
+      print("or modify your vimrc to have 'let g:black_use_virtualenv = 1'.")
+      return False
+    else:
+      # Nothing needed to be done.
+      return True
+
   pyver = sys.version_info[:3]
   if pyver < (3, 7):
     print("Sorry, Black requires Python 3.7+ to run.")
@@ -72,7 +90,7 @@ def _initialize_black_env(upgrade=False):
     _executable = sys.executable
     _base_executable = getattr(sys, "_base_executable", _executable)
     try:
-      executable = str(_get_python_binary(Path(sys.exec_prefix)))
+      executable = str(_get_python_binary(Path(sys.exec_prefix), pyver))
       sys.executable = executable
       sys._base_executable = executable
       print(f'Creating a virtualenv in {virtualenv_path}...')