feat: add more DTZ fix suggestions in messages (#2274)

README.md

@@ -938,14 +938,14 @@ For more, see [flake8-datetimez](https://pypi.org/project/flake8-datetimez/) on
 | Code | Name | Message | Fix |
 | ---- | ---- | ------- | --- |
 | DTZ001 | call-datetime-without-tzinfo | The use of `datetime.datetime()` without `tzinfo` argument is not allowed |  |
-| DTZ002 | call-datetime-today | The use of `datetime.datetime.today()` is not allowed |  |
+| DTZ002 | call-datetime-today | The use of `datetime.datetime.today()` is not allowed, use `datetime.datetime.now(tz=)` instead |  |
-| DTZ003 | call-datetime-utcnow | The use of `datetime.datetime.utcnow()` is not allowed |  |
+| DTZ003 | call-datetime-utcnow | The use of `datetime.datetime.utcnow()` is not allowed, use `datetime.datetime.now(tz=)` instead |  |
-| DTZ004 | call-datetime-utcfromtimestamp | The use of `datetime.datetime.utcfromtimestamp()` is not allowed |  |
+| DTZ004 | call-datetime-utcfromtimestamp | The use of `datetime.datetime.utcfromtimestamp()` is not allowed, use `datetime.datetime.fromtimestamp(ts, tz=)` instead |  |
 | DTZ005 | call-datetime-now-without-tzinfo | The use of `datetime.datetime.now()` without `tz` argument is not allowed |  |
 | DTZ006 | call-datetime-fromtimestamp | The use of `datetime.datetime.fromtimestamp()` without `tz` argument is not allowed |  |
 | DTZ007 | call-datetime-strptime-without-zone | The use of `datetime.datetime.strptime()` without %z must be followed by `.replace(tzinfo=)` or `.astimezone()` |  |
-| DTZ011 | call-date-today | The use of `datetime.date.today()` is not allowed. |  |
+| DTZ011 | call-date-today | The use of `datetime.date.today()` is not allowed, use `datetime.datetime.now(tz=).date()` instead |  |
-| DTZ012 | call-date-fromtimestamp | The use of `datetime.date.fromtimestamp()` is not allowed |  |
+| DTZ012 | call-date-fromtimestamp | The use of `datetime.date.fromtimestamp()` is not allowed, use `datetime.datetime.fromtimestamp(ts, tz=).date()` instead |  |
 
 ### flake8-debugger (T10)
 

src/violations.rs

@@ -4061,7 +4061,10 @@ define_violation!(
 impl Violation for CallDatetimeToday {
     #[derive_message_formats]
     fn message(&self) -> String {
-        format!("The use of `datetime.datetime.today()` is not allowed")
+        format!(
+            "The use of `datetime.datetime.today()` is not allowed, use \
+             `datetime.datetime.now(tz=)` instead"
+        )
     }
 }
 
@@ -4071,7 +4074,10 @@ define_violation!(
 impl Violation for CallDatetimeUtcnow {
     #[derive_message_formats]
     fn message(&self) -> String {
-        format!("The use of `datetime.datetime.utcnow()` is not allowed")
+        format!(
+            "The use of `datetime.datetime.utcnow()` is not allowed, use \
+             `datetime.datetime.now(tz=)` instead"
+        )
     }
 }
 
@@ -4081,7 +4087,10 @@ define_violation!(
 impl Violation for CallDatetimeUtcfromtimestamp {
     #[derive_message_formats]
     fn message(&self) -> String {
-        format!("The use of `datetime.datetime.utcfromtimestamp()` is not allowed")
+        format!(
+            "The use of `datetime.datetime.utcfromtimestamp()` is not allowed, use \
+             `datetime.datetime.fromtimestamp(ts, tz=)` instead"
+        )
     }
 }
 
@@ -4126,7 +4135,10 @@ define_violation!(
 impl Violation for CallDateToday {
     #[derive_message_formats]
     fn message(&self) -> String {
-        format!("The use of `datetime.date.today()` is not allowed.")
+        format!(
+            "The use of `datetime.date.today()` is not allowed, use \
+             `datetime.datetime.now(tz=).date()` instead"
+        )
     }
 }
 
@@ -4136,7 +4148,10 @@ define_violation!(
 impl Violation for CallDateFromtimestamp {
     #[derive_message_formats]
     fn message(&self) -> String {
-        format!("The use of `datetime.date.fromtimestamp()` is not allowed")
+        format!(
+            "The use of `datetime.date.fromtimestamp()` is not allowed, use \
+             `datetime.datetime.fromtimestamp(ts, tz=).date()` instead"
+        )
     }
 }