Switch entirely off of the implicit-format() message signature, to finally stop the 'panic when an f-string gets some curly braces in it' errors.

Author: tabatkins

bikeshed/Spec.py

@@ -117,13 +117,10 @@ def initializeState(self):
             if inputContent.date is not None:
                 self.mdBaseline.addParsedData("Date", inputContent.date)
         except FileNotFoundError:
-            die(
-                "Couldn't find the input file at the specified location '{0}'.",
-                self.inputSource,
-            )
+            die(f"Couldn't find the input file at the specified location '{self.inputSource}'.")
             return False
         except OSError:
-            die("Couldn't open the input file '{0}'.", self.inputSource)
+            die(f"Couldn't open the input file '{self.inputSource}'.")
             return False
 
         return True
@@ -304,7 +301,7 @@ def serialize(self):
         try:
             rendered = h.Serializer(self.md.opaqueElements, self.md.blockElements).serialize(self.document)
         except Exception as e:
-            die("{0}", e)
+            die(str(e))
             return
         rendered = finalHackyCleanup(rendered)
         return rendered
@@ -334,11 +331,7 @@ def finish(self, outputFilename=None, newline=None):
                     with open(outputFilename, "w", encoding="utf-8", newline=newline) as f:
                         f.write(rendered)
             except Exception as e:
-                die(
-                    "Something prevented me from saving the output document to {0}:\n{1}",
-                    outputFilename,
-                    e,
-                )
+                die(f"Something prevented me from saving the output document to {outputFilename}:\n{e}")
 
     def printResultMessage(self):
         # If I reach this point, I've succeeded, but maybe with reservations.
@@ -351,7 +344,7 @@ def printResultMessage(self):
             success("Successfully generated, but fatal errors were suppressed")
             return
         if links:
-            success("Successfully generated, with {0} linking errors", links)
+            success(f"Successfully generated, with {links} linking errors")
             return
         if warnings:
             success("Successfully generated, with warnings")
@@ -416,7 +409,7 @@ def log_message(self, format, *args):
                     thread.join()
                 sys.exit(0)
         except Exception as e:
-            die("Something went wrong while watching the file:\n{0}", e)
+            die(f"Something went wrong while watching the file:\n{e}")
 
     def fixText(self, text, moreMacros={}):
         # Do several textual replacements that need to happen *before* the document is parsed as h.

bikeshed/biblio.py

@@ -223,7 +223,7 @@ def processReferBiblioFile(lines, storage, order):
         if match:
             letter, value = match.groups()
         else:
-            die("Biblio line in unexpected format:\n{0}", line)
+            die(f"Biblio line in unexpected format:\n{line}")
             continue
 
         if letter in singularReferCodes:
@@ -233,7 +233,7 @@ def processReferBiblioFile(lines, storage, order):
         elif letter in unusedReferCodes:
             pass
         else:
-            die("Unknown line type ")
+            die(f"Unknown line type {letter}:\n{line}")
     if biblio is not None:
         storage[biblio["linkText"].lower()] = biblio
     return storage
@@ -277,7 +277,7 @@ def processSpecrefBiblioFile(text, storage, order):
     try:
         datas = json.loads(text)
     except Exception as e:
-        die("Couldn't read the local JSON file:\n{0}", str(e))
+        die(f"Couldn't read the local JSON file:\n{e}")
         return storage
 
     # JSON field name: BiblioEntry name
@@ -372,7 +372,7 @@ def loadBiblioDataFile(lines, storage):
                 }
                 line = next(lines)  # Eat the -
             else:
-                die("Unknown biblio prefix '{0}' on key '{1}'", prefix, fullKey)
+                die(f"Unknown biblio prefix '{prefix}' on key '{fullKey}'")
                 continue
             storage[key].append(b)
     except StopIteration:

bikeshed/boilerplate.py

@@ -359,9 +359,7 @@ def addExplicitIndexes(doc):
         status = el.get("status")
         if status and status not in config.specStatuses:
             die(
-                "<index> has unknown value '{0}' for status. Must be {1}.",
-                status,
-                config.englishFromList(config.specStatuses),
+                f"<index> has unknown value '{status}' for status. Must be {config.englishFromList(config.specStatuses)}.",
                 el=el,
             )
             continue
@@ -371,7 +369,7 @@ def addExplicitIndexes(doc):
             for t in types:
                 if t not in config.dfnTypes:
                     die(
-                        "Unknown type value '{}' on {}".format(t, outerHTML(el)),
+                        f"Unknown type value '{t}' on {outerHTML(el)}",
                         el=el,
                     )
                     types.remove(t)
@@ -383,7 +381,7 @@ def addExplicitIndexes(doc):
             specs = {x.strip() for x in el.get("data-link-spec").split(",")}
             for s in list(specs):
                 if s not in doc.refs.specs:
-                    die("Unknown spec name '{}' on {}".format(s, outerHTML(el)), el=el)
+                    die(f"Unknown spec name '{s}' on {outerHTML(el)}", el=el)
                     specs.remove(s)
         else:
             specs = None
@@ -401,7 +399,7 @@ def addExplicitIndexes(doc):
                 export = False
             else:
                 die(
-                    "Unknown export value '{}' (should be boolish) on {}".format(exportVal, outerHTML(el)),
+                    f"Unknown export value '{exportVal}' (should be boolish) on {outerHTML(el)}",
                     el=el,
                 )
                 export = None
@@ -599,8 +597,7 @@ def extractKeyValFromRow(row, table):
         result = re.match(r"(.*):", textContent(row[0]).strip())
         if result is None:
             die(
-                "Propdef row headers must be a word followed by a colon. Got:\n{0}",
-                textContent(row[0]).strip(),
+                f"Propdef row headers must be a word followed by a colon. Got:\n{textContent(row[0]).strip()}",
                 el=table,
             )
             return "", ""
@@ -802,20 +799,14 @@ def addTOCSection(doc):
         if isinstance(container, int):
             # Saw a low-level heading without first seeing a higher heading.
             die(
-                "Saw an <h{0}> without seeing an <h{1}> first. Please order your headings properly.\n{2}",
-                level,
-                level - 1,
-                outerHTML(header),
+                f"Saw an <h{level}> without seeing an <h{level-1}> first. Please order your headings properly.\n{outerHTML(header)}",
                 el=header,
             )
             return
         if level > previousLevel + 1:
             # Jumping two levels is a no-no.
             die(
-                "Heading level jumps more than one level, from h{0} to h{1}:\n  {2}",
-                previousLevel,
-                level,
-                textContent(header).replace("\n", " "),
+                f"Heading level jumps more than one level, from h{previousLevel} to h{level}:\n{outerHTML(el)}",
                 el=header,
             )
             return
@@ -920,8 +911,7 @@ def printTranslation(tr):
                 missingInfo = True
         if missingInfo:
             warn(
-                "Bikeshed doesn't have all the translation info for '{0}'. Please add to bikeshed/spec-data/readonly/languages.json and submit a PR!",
-                lang,
+                f"Bikeshed doesn't have all the translation info for '{lang}'. Please add to bikeshed/spec-data/readonly/languages.json and submit a PR!"
             )
         if nativeName:
             return E.span(

bikeshed/caniuse.py

@@ -33,7 +33,7 @@ def addCanIUsePanels(doc):
 
         featId = featId.lower()
         if not doc.canIUse.hasFeature(featId):
-            die("Unrecognized Can I Use feature ID: {0}", featId, el=dfn)
+            die(f"Unrecognized Can I Use feature ID: {featId}", el=dfn)
         feature = doc.canIUse.getFeature(featId)
 
         addClass(dfn, "caniuse-paneled")
@@ -45,11 +45,7 @@ def addCanIUsePanels(doc):
         )
         dfnId = dfn.get("id")
         if not dfnId:
-            die(
-                "Elements with `caniuse` attribute need to have an ID as well. Got:\n{0}",
-                serializeTag(dfn),
-                el=dfn,
-            )
+            die(f"Elements with `caniuse` attribute need to have an ID as well. Got:\n{serializeTag(dfn)}", el=dfn)
             continue
         panel.set("data-dfn-id", dfnId)
         appendChild(doc.body, panel)
@@ -207,9 +203,9 @@ def validateCanIUseURLs(doc, elements):
 
     unusedFeatures = urlFeatures - docFeatures
     if unusedFeatures:
+        featureList = "\n".join(" * {0} - https://caniuse.com/#feat={0}".format(x) for x in sorted(unusedFeatures))
         warn(
-            "The following Can I Use features are associated with your URLs, but don't show up in your spec:\n{0}",
-            "\n".join(" * {0} - https://caniuse.com/#feat={0}".format(x) for x in sorted(unusedFeatures)),
+            f"The following Can I Use features are associated with your URLs, but don't show up in your spec:\n{featureList}"
         )
 
 

bikeshed/config/retrieve.py

@@ -107,11 +107,9 @@ def boilerplatePath(*segs):
         for f in (statusFile, genericFile):
             if doc.inputSource.cheaplyExists(f):
                 warn(
-                    (
-                        "Found {0} next to the specification without a matching\n"
-                        + "Local Boilerplate: {1} yes\n"
-                        + "in the metadata. This include won't be found when building via a URL."
-                    ).format(f, name)
+                    f"Found {f} next to the specification without a matching\n"
+                    + f"Local Boilerplate: {name} yes\n"
+                    + "in the metadata. This include won't be found when building via a URL."
                 )
                 # We should remove this after giving specs time to react to the warning:
                 sources.append(doc.inputSource.relative(f))
@@ -138,9 +136,6 @@ def boilerplatePath(*segs):
     else:
         if error:
             die(
-                "Couldn't find an appropriate include file for the {0} inclusion, given group='{1}' and status='{2}'.",
-                name,
-                group,
-                status,
+                f"Couldn't find an appropriate include file for the {name} inclusion, given group='{group}' and status='{status}'."
             )
         return ""

bikeshed/config/status.py

@@ -295,7 +295,7 @@ def canonicalizeStatus(rawStatus, group):
 
     def validateW3Cstatus(group, status, rawStatus):
         if status == "DREAM":
-            warn("You used Status: DREAM for a W3C document." + " Consider UD instead.")
+            warn("You used Status: DREAM for a W3C document. Consider UD instead.")
             return
 
         if "w3c/" + status in shortToLongStatus:
@@ -304,25 +304,17 @@ def validateW3Cstatus(group, status, rawStatus):
         def formatStatusSet(statuses):
             return ", ".join(sorted({status.split("/")[-1] for status in statuses}))
 
-        msg = "You used Status: {0}, but {1} limited to these statuses: {2}."
-
         if group in w3cIgs and status not in w3cIGStatuses:
             warn(
-                msg,
-                rawStatus,
-                "W3C Interest Groups are",
-                formatStatusSet(w3cIGStatuses),
+                f"You used Status: {rawStatus}, but W3C Interest Groups are limited to these statuses: {formatStatusSet(w3cIGStatuses)}."
             )
 
         if group == "tag" and status not in w3cTAGStatuses:
             warn(msg, rawStatus, "the TAG is", formatStatusSet(w3cTAGStatuses))
 
         if group in w3cCgs and status not in w3cCommunityStatuses:
             warn(
-                msg,
-                rawStatus,
-                "W3C Community and Business Groups are",
-                formatStatusSet(w3cCommunityStatuses),
+                f"You used Status: {rawStatus}, but W3C Community and Business Groups are limited to these statuses: {formatStatusSet(w3cCommunityStatuses)}."
             )
 
     def megaGroupsForStatus(status):
@@ -380,9 +372,7 @@ def megaGroupsForStatus(status):
                     )
             else:
                 if len(possibleMgs) == 1:
-                    msg += " That status can only be used with the org '{0}', like `Status: {0}/{1}`".format(
-                        possibleMgs[0], status
-                    )
+                    msg += f" That status can only be used with the org '{possibleMgs[0]}', like `Status: {possibleMgs[0]}/{status}`"
                 else:
                     msg += " That status can only be used with the orgs {}.".format(
                         englishFromList(f"'{x}'" for x in possibleMgs)
@@ -393,7 +383,7 @@ def megaGroupsForStatus(status):
                 msg = f"Unknown Status metadata '{canonStatus}'. Check the docs for valid Status values."
             else:
                 msg = f"Status '{status}' can't be used with the org '{megaGroup}'. Check the docs for valid Status values."
-        die("{0}", msg)
+        die(msg)
         return canonStatus
 
     # Otherwise, they provided a bare status.
@@ -425,7 +415,7 @@ def megaGroupsForStatus(status):
             msg += ", and you don't have a Group metadata. Please declare your Group, or check the docs for statuses that can be used by anyone."
     else:
         msg = f"Unknown Status metadata '{canonStatus}'. Check the docs for valid Status values."
-    die("{0}", msg)
+    die(msg)
     return canonStatus