Updated the missing package warnings and errors in export to link to the package site

nw/common.py

@@ -105,3 +105,11 @@ def splitVersionNumber(vString):
     vInt = vMajor*10000 + vMinor*100 + vPatch
 
     return [vMajor, vMinor, vPatch, vInt]
+
+def packageRefURL(packName):
+    from nw.constants import nwDependencies
+    if packName in nwDependencies.PACKS.keys():
+        return "<a href=\"%s\">%s</a>" % (
+            nwDependencies.PACKS[packName]["site"], packName
+        )
+    return packName

nw/constants.py

@@ -80,6 +80,42 @@ class nwLabels():
 
 # END Class nwLabels
 
+class nwDependencies():
+    """Python package dependencies and their reference links.
+    """
+    PACKS = {
+        "pyqt5"      : {
+            "site" : "",
+            "docs" : "",
+        },
+        "appdirs"    : {
+            "site" : "",
+            "docs" : "",
+        },
+        "lxml"       : {
+            "site" : "",
+            "docs" : "",
+        },
+        "pyenchant"  : {
+            "site" : "",
+            "docs" : "",
+        },
+        "pycountry"  : {
+            "site" : "",
+            "docs" : "",
+        },
+        "latexcodec" : {
+            "site" : "https://pypi.org/project/latexcodec/",
+            "docs" : "https://latexcodec.readthedocs.io/en/latest/",
+        },
+        "pypandoc" : {
+            "site" : "https://pypi.org/project/pypandoc/",
+            "docs" : "https://pypi.org/project/pypandoc/",
+        },
+    }
+
+# END Class nwDependencies
+
 class nwQuotes():
     """Allowed quotation marks.
     Source: https://en.wikipedia.org/wiki/Quotation_mark

nw/gui/export.py

@@ -31,6 +31,7 @@ from nw.convert.file.html     import HtmlFile
 from nw.convert.file.markdown import MarkdownFile
 from nw.convert.file.latex    import LaTeXFile
 from nw.convert.file.concat   import ConcatFile
+from nw.common                import packageRefURL
 from nw.constants             import nwFiles
 from nw.enum                  import nwItemType, nwAlert
 
@@ -191,9 +192,11 @@ class GuiExport(QDialog):
             # Check that encoding was successful
             if outFile.texCodecFail:
                 self.theParent.makeAlert((
-                    "Failed to escape unicode characters while writing LaTeX file. "
+                    "Failed to escape unicode characters while writing LaTeX file. The generated "
-                    "The genrated .tex file may not build properly. "
+                    ".tex file may not build properly. Make sure the python package '{package:s}' "
-                    "Make sure the python package 'latexcodec' is installed and working."
+                    "is installed and working."
+                ).format(
+                    package = packageRefURL("latexcodec")
                 ), nwAlert.WARN)
 
         if eFormat != GuiExportMain.FMT_PDOC:
@@ -227,8 +230,10 @@ class GuiExport(QDialog):
             import pypandoc
         except:
             self.theParent.makeAlert((
-                "Could not load the 'pypandoc' package. "
+                "Could not load the '{package:s}' package. "
                 "Make sure it is installed, and try again."
+            ).format(
+                package = packageRefURL("pypandoc")
             ), nwAlert.ERROR)
             return False
 

requirements.txt

@@ -4,3 +4,4 @@ lxml
 pyenchant
 pycountry
 latexcodec
+pypandoc