From 6dbfd798b957248e660d547e5eadb36727c6a081 Mon Sep 17 00:00:00 2001
From: Fabian Neumann <fabian.neumann@outlook.de>
Date: Thu, 16 Mar 2023 15:54:52 +0100
Subject: [PATCH] encapsulate imports in helpers to minimise requirements for
 docs

---
 scripts/_helpers.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/_helpers.py b/scripts/_helpers.py
index 2e74c75d..81850e07 100644
--- a/scripts/_helpers.py
+++ b/scripts/_helpers.py
@@ -14,7 +14,6 @@ import pytz
 import yaml
 from pypsa.components import component_attrs, components
 from pypsa.descriptors import Dict
-from snakemake.utils import update_config
 from tqdm import tqdm
 
 logger = logging.getLogger(__name__)
@@ -443,6 +442,7 @@ def parse(l):
 
 
 def update_config_with_sector_opts(config, sector_opts):
+    from snakemake.utils import update_config
     for o in sector_opts.split("-"):
         if o.startswith("CF+"):
             l = o.split("+")[1:]