ENH don't depend on system files for python dev

etc/conf.org

@@ -959,18 +959,12 @@ I don't really use elpy, but it has really nice inferior process commands, so im
 **** anaconda, ipython, and flycheck
 Anaconda is much lighter and easier than elpy. Also use ipython instead of the built-in shell. (Note this requires ipython to be installed externally).
 
-=Flycheck= has built in support for syntax checking and can be additionally enhanced by installing the following:
+Note that all my checkers/formatters/interactive shells are managed through =conda= rather than installed system-wide (not to be confused with =anaconda= above).
-- flake8
-- pylint
 #+BEGIN_SRC emacs-lisp
 (defun nd/init-anaconda-company ()
   "Set the company backends for anaconda mode."
   (setq-local company-backends '(company-anaconda)))
 
-(nd/require-bin "ipython")
-(nd/require-bin "flake8")
-(nd/require-bin "python-pylint")
-
 (use-package python
   :after flycheck
   :hook ((python-mode . flycheck-mode)
@@ -984,11 +978,11 @@ Anaconda is much lighter and easier than elpy. Also use ipython instead of the b
          (inferior-python-mode . nd/init-anaconda-company))
   :config
   (progn
-    (nd/when-bin "ipython"
+    (nd/when-bin "conda"
       (setq indent-tabs-mode nil
             python-shell-interpreter "ipython"
             python-shell-interpreter-args "-i --simple-prompt --quiet --no-banner"))
-    (nd/when-bin "flake8"
+    (nd/when-bin "conda"
       (flycheck-add-next-checker 'python-flake8 'python-pylint))))
 
 (use-package anaconda-mode
@@ -1002,9 +996,7 @@ Anaconda is much lighter and easier than elpy. Also use ipython instead of the b
 **** formatting
 [[https://github.com/python/black][Black]] is a really nice syntax formatter. It must be externally installed to work.
 #+BEGIN_SRC emacs-lisp
-(nd/require-bin "black" :pacman "python-black")
+(nd/when-bin "conda"
-
-(nd/when-bin "black"
   (use-package blacken
     :straight t))
 #+END_SRC