From 5dec1eb382033bc62f8a6653defcbbeee256bb6f Mon Sep 17 00:00:00 2001
From: sejo <compudanzas@posteo.net>
Date: Fri, 21 Jan 2022 19:51:30 -0600
Subject: [PATCH] file 'with ... as'

---
 links.py | 55 ++++++++++++++++++++++++++-----------------------------
 1 file changed, 26 insertions(+), 29 deletions(-)

diff --git a/links.py b/links.py
index fa5ef07..e93d516 100644
--- a/links.py
+++ b/links.py
@@ -25,22 +25,21 @@ for filename in os.listdir():
                 incoming[wikilink] = set()
 
             # open file and search for all outgoing links
-            file = open(filename)
-            pre_mode = False
-            for line in file:
-                if re.match("```",line) != None: # toggle preformatted mode
-                    pre_mode = not pre_mode
-                if pre_mode: # skip preformatted mode
-                    continue
-                while re.search("\{[^{}]+\}",line):
-                    m = re.search("\{[^{}]+\}",line)
-                    match = m.group() # matched string
-                    if match not in incoming: # create a new set for that page
-                        incoming[match] = set()
-                    # add this file
-                    incoming[match].add(wikilink)
-                    line = line[m.end()+1:]
-            file.close()
+            with open(filename) as file:
+                pre_mode = False
+                for line in file:
+                    if re.match("```",line) != None: # toggle preformatted mode
+                        pre_mode = not pre_mode
+                    if pre_mode: # skip preformatted mode
+                        continue
+                    while re.search("\{[^{}]+\}",line):
+                        m = re.search("\{[^{}]+\}",line)
+                        match = m.group() # matched string
+                        if match not in incoming: # create a new set for that page
+                            incoming[match] = set()
+                        # add this file
+                        incoming[match].add(wikilink)
+                        line = line[m.end()+1:]
 
 os.chdir('../tmp/')
 # remove incoming links for:
@@ -54,17 +53,15 @@ for key,links in incoming.items():
 #    print(key)
 
     # open file in append mode
-    file = open(filename, 'a') 
+    with open(filename, 'a') as file:
 
-    if len(links):
-        # write incoming links
-#        print( '{} incoming links\n'.format( len(links) ) )
-        file.write("\n\n# incoming links\n")
-        for link in links:
-            gemlink = '=> ./{} {}'.format(wikilink2Filename(link), link) 
-#            print(gemlink)
-            file.write(gemlink+"\n")
-    else:
-        print( '{}: orphan\n'.format(key) )
-        file.write("\n\nno incoming links\n")
-    file.close()
+        if len(links):
+            # write incoming links
+    #        print( '{} incoming links\n'.format( len(links) ) )
+            file.write("\n\n# incoming links\n")
+            for link in links:
+                gemlink = '=> ./{} {}'.format(wikilink2Filename(link), link) 
+                file.write(gemlink+"\n")
+        else:
+            print( '{}: orphan\n'.format(key) )
+            file.write("\n\nno incoming links\n")