fix: key error when handling FileNotFoundError in input functions. (#…

…1138)
snakemake · Aug 17, 2021 · d25f04d · d25f04d
1 parent 2104e10
commit d25f04d
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/snakemake/rules.py b/snakemake/rules.py
@@ -708,7 +708,7 @@ def apply_input_function(
             # Function evaluation can depend on input files. Since expansion can happen during dryrun,
             # where input files are not yet present, we need to skip such cases and
             # mark them as <TBD>.
-            if e.filename in aux_params["input"]:
+            if "input" in aux_params and e.filename in aux_params["input"]:
                 value = TBDString()
             else:
                 raise e