Specific boolean comparisons in code made literal

Changed all comparisons with False in code now to literal checking
(ie. used "var is False" rather than "var == False"). This will
avoid some unforseen circumstances.

diff --git a/biaweb_exporter.py b/biaweb_exporter.py
index 52d9a02..b940867 100644 (file)
--- a/biaweb_exporter.py
+++ b/biaweb_exporter.py
@@ -76,7 +76,7 @@ def generate_search_index (dbname, conf, full_text_index = True):
        # get all the articles
        arts = biaweb_db.site_articles (dbname)
        # if cannot get articles
-       if arts == False:
+       if arts is False:
                return False
 
        # if full text index, then field should be article content otherwise keywords
@@ -202,7 +202,7 @@ def generate_article_pages (dbname, conf, templates, category_str, bestrated_str
 
        # get all articles from the database
        articles = biaweb_db.site_articles (dbname)
-       if articles == False:
+       if articles is False:
                return
 
        # walk through each article and generate the file in the appropriate category
@@ -258,7 +258,7 @@ def generate_category_indices (dbname, conf, templates, category_str, bestrated_
 
                # now get the list of articles for the specified category
                articles_list = biaweb_db.site_articles (dbname, cat[0])
-               if articles_list == False:
+               if articles_list is False:
                        return False
 
                tableitems = []
@@ -313,7 +313,7 @@ def generate_rss_feed (dbname, conf):
 
        # get the latest articles (limit by number of rss items)
        arts = biaweb_db.site_latest_articles (dbname, conf[4])
-       if arts == False:
+       if arts is False:
                return False
 
        rss_item_list = []
@@ -356,7 +356,7 @@ def generate_home_page (dbname, conf, templates, category_str, bestrated_str):
 
        # get the latest articles - conf[4] is num of rss entries to be used also
        latest_arts = biaweb_db.site_latest_articles (dbname, conf[4])
-       if latest_arts == False:
+       if latest_arts is False:
                return False
 
        news_items = []
@@ -417,18 +417,18 @@ def generate_site (dbname, files_to_copy, folders_to_copy, search_type_full=True
        # get the configuration
        conf = biaweb_db.get_configuration (dbname)
        # if cannot get configuration
-       if conf == False:
+       if conf is False:
                return False
 
        # get the templates
        tpls = biaweb_db.get_templates (dbname)
-       if tpls == False:
+       if tpls is False:
                return False
 
        # get the list of categories
        cats = biaweb_db.get_categories (dbname)
        # cannot get categories return false
-       if cats == False:
+       if cats is False:
                return False
 
        # format the categories as a html bulleted list
@@ -437,7 +437,7 @@ def generate_site (dbname, files_to_copy, folders_to_copy, search_type_full=True
        # get the best rated articles
        best_rated = biaweb_db.site_get_bestrated (dbname)
        # if cannot retrieve
-       if best_rated == False:
+       if best_rated is False:
                return False
        # format the best rated articles as a html bulleted list
        best_rated_str = html_format_best_rated (best_rated)
@@ -452,32 +452,32 @@ def generate_site (dbname, files_to_copy, folders_to_copy, search_type_full=True
 
        # generate the index page including style sheet
        ret = generate_home_page (dbname, conf, tpls, cats_str, best_rated_str)
-       if ret == False:
+       if ret is False:
                return False
 
        # generate the rss feed
        ret = generate_rss_feed (dbname, conf)
-       if ret == False:
+       if ret is False:
                return False
 
        # generate the category directories and indices
        ret = generate_category_indices (dbname, conf, tpls, cats_str, best_rated_str, cats)
-       if ret == False:
+       if ret is False:
                return False
 
        # generate the article pages
        ret = generate_article_pages (dbname, conf, tpls, cats_str, best_rated_str)
-       if ret == False:
+       if ret is False:
                return False
 
        # copy other files/folders into the destination path
        ret = copy_files_folders (conf, files_to_copy, folders_to_copy)
-       if ret == False:
+       if ret is False:
                return False
 
        # now generate the search index database
        ret = generate_search_index (dbname, conf, search_type_full)
-       if ret == False:
+       if ret is False:
                return False
 
        # finally when all is successfully done return true

diff --git a/main_window.py b/main_window.py
index 799fdf8..57762af 100644 (file)
--- a/main_window.py
+++ b/main_window.py
@@ -23,7 +23,7 @@ class MainWindow (PyQt4.QtGui.QMainWindow, ui_main_window.Ui_MainWindow):
                recs = biaweb_db.get_categories (self.current_db)
 
                # check with False because None is returned when no records exist
-               if recs == False:
+               if recs is False:
                        PyQt4.QtGui.QMessageBox.critical (self, "Error", "SQLite 3 error in getting the categories")
                        return False
 
@@ -40,7 +40,7 @@ class MainWindow (PyQt4.QtGui.QMainWindow, ui_main_window.Ui_MainWindow):
                recs = biaweb_db.get_articles (self.current_db, catid)
 
                # check with False because None is returned when no records exist
-               if recs == False:
+               if recs is False:
                        PyQt4.QtGui.QMessageBox.critical (self, "Error", "SQLite 3 error in getting the articles")
                        return False
 
@@ -342,7 +342,7 @@ class MainWindow (PyQt4.QtGui.QMainWindow, ui_main_window.Ui_MainWindow):
                        loaded_arts = self.repopulate_articles ()
                        # if failed in loading either categories or articles (note: checking against
                        # False and not None)
-                       if loaded_cats == False or loaded_arts == False:
+                       if loaded_cats is False or loaded_arts is False:
                                self.current_db = None
                                PyQt4.QtGui.QMessageBox.critical (self, "Error",
                                        "SQLite 3 error in loading site database. This appears to be an invalid BiaWeb database")

diff --git a/templates_dialog.py b/templates_dialog.py
index 20f2e18..db61404 100644 (file)
--- a/templates_dialog.py
+++ b/templates_dialog.py
@@ -35,7 +35,7 @@ class TemplatesDialog (PyQt4.QtGui.QDialog, ui_templates_dialog.Ui_TemplatesDial
                tpl_str = biaweb_db.get_template_text (self.current_db, tpl_name)
 
                # if template string cannot be obtained for some reason
-               if tpl_str == False:
+               if tpl_str is False:
                        PyQt4.QtGui.QMessageBox.critical (self, "Error", "SQLite 3 error in retrieving template")
                else:
                        # open edit dialog with title "template name" and text as the template string
@@ -47,6 +47,6 @@ class TemplatesDialog (PyQt4.QtGui.QDialog, ui_templates_dialog.Ui_TemplatesDial
                                # update the template with the new template string
                                ret = biaweb_db.update_template (self.current_db, tpl_name, upd_tpl_str)
                                # if update failed
-                               if ret == False:
+                               if ret is False:
                                        PyQt4.QtGui.QMessageBox.critical (self, "Error", "SQLite 3 error in updating template")