file error handling

mkv_this/mkv_this.py

@@ -50,14 +50,19 @@ def main():
 
     args = parser.parse_args()
 
+    fnf = 'error: file not found. please provide a path to a really-existing file!'
+    
     # if a combine file is provided, combine it w/ input file:
     if args.combine :
         # get raw text as a string for both files:
-        with open(args.infile, encoding="latin-1") as f:
-            text = f.read()
-
-        with open(args.combine, encoding="latin-1") as cf:
-            ctext = cf.read()
+        try:
+            with open(args.infile, encoding="latin-1") as f:
+                text = f.read()
+            with open(args.combine, encoding="latin-1") as cf:
+                ctext = cf.read()
+        except FileNotFoundError:
+            print(fnf)
+            sys.exit()
 
         # build the models and build a combined model:
         # NB: attempting to implement Newline option here (and below):
@@ -91,13 +96,17 @@ def main():
         # if no combo file, just do normal:
     else:
         # Get raw text as string.
-        with open(args.infile, encoding="latin-1") as f:
-            text = f.read()
+        try:
+            with open(args.infile, encoding="latin-1") as f:
+                text = f.read()
+        except FileNotFoundError:
+            print(fnf)
+            sys.exit()
         
         # Build the model:
         # NB: this errors if infile is EMPTY:
 
-        ## implement newline option here:
+        ## newline option:
         if args.newline :
             text_model = markovify.NewlineText(text,
                 state_size=args.state_size, well_formed=args.no_well_formed)

setup.py

@@ -7,7 +7,7 @@ with open(path.join(this_directory, 'README.md'), encoding='utf-8') as f:
     long_description = f.read()
     
 setup(name='mkv-this',
-      version='0.1.25',
+      version='0.1.26',
       description='cli wrapper for markovify: take a text file, markovify, output the results to a text file.',
       long_description=long_description,
       long_description_content_type='text/markdown',