Few suggestions - 1. I think would be good if incomplete, failed downloads doesn't appear in download directory. I think would be good if set default download directory option is available in GUI. Users may not know that changing the download directory on download window changes the default download location.
And an option in the GUI is better. I have fast broadband but limited plan i. Unlimited plan is expensive in India. Currently for every cancelled downloads you have to cancel browser download window too. I dont like the main GUI opening for downloads. The small window that opens for download is good. And "Download Popup" on the bottom right corner would be good. Basically everything like FDM 3. Regards Yash. Yessa » Sat Dec 26, pm We appreciate your feedback! Yessa wrote: We appreciate your feedback!
These things are definitely in out to-do list: 1 an option to monitor downloads only with a hotkey e. Alt 2 An option to set the default download folder. To determine whether a file or folder is encrypted, follow these steps:. Tap or click the General tab, and then tap or click Advanced.
If the Encrypt contents to secure data check box is selected, you have to have the certificate that was used to encrypt the file or folder to be able to open it.
In this situation, you should obtain the certificate from the person who created or encrypted the file or folder, or have that person decrypt the file or folder.
You may not have ownership of a file or folder If you recently upgraded your computer to Windows 7 from an earlier version of Windows, some of your account information may have changed. To take ownership of a file or a folder, follow these steps:. Right-click the folder that you want to take ownership of, then click Properties.
Click the Security tab, click Advanced , then click the Owner tab. Note If you are prompted for an administrator password or for confirmation, type the password or provide confirmation. If you want this person to be the owner of files and subfolders in this folder, select the Replace owner on subcontainers and objects check box.
To determine the permissions of the file or folder, follow these steps:. Under Group or user names , click your name to see the permissions that you have.
To change permissions on a file or folder, follow these steps. Click Edit , click your name, select the check boxes for the permissions that you must have, and then click OK. For more information about permissions, see What are permissions? Click the General tab, then click Advanced. You should obtain the certificate from the person who created or encrypted the file or folder, or have that person decrypt the file or folder. For more information, see Import or export certificates and private keys.
Cause A problem that prevents you from accessing or working with files and folders can occur for one or more of the following reasons:. To check permissions on a file or a folder, follow these steps:. The file or folder may be corrupted Files can become corrupted for several reasons.
The most common reason is that you have a file open when your computer crashes or loses power. Most corrupted files cannot be repaired.
In this situation, you should either delete the file or restore the file from a backup copy. For more information about corrupted files and how to fix them, see Corrupted files: frequently asked questions. Your local user profile may be corrupted Occasionally, Windows might not read your local user profile correctly. This may prevent you from accessing files and folders. In this situation, you may have to use a new local user profile. To create the profile, you must first create a local user account.
When the new account is created, the profile is also created. To create a local user account, follow these steps:. Dictionary indices are usable with their keys and values properties, so:. Semicolon can be used as a single no-op statement in otherwise empty cases in switch statements:. These new types allow implicit conversions from Swift inout parameters and from Swift arrays:.
This type doesn't work with arrays, but accepts inouts or nil :. Note that we don't know whether an API reads or writes the C pointer, so you need to explicitly initialize values like s and c above even if you know that the API overwrites them.
This pointer bridging only applies to arguments, and only works with well- behaved C and ObjC APIs that don't keep the pointers they receive as arguments around or do other dirty pointer tricks.
Nonstandard use of pointer arguments still requires UnsafePointer. Objective-C pointer types now get imported by default as the unchecked T? Swift class types no longer implicitly include nil. A value of unchecked T? For example, if you would like to just silently ignore a message send a la Objective-C, you can use the postfix?
This design allows you to isolate and handle nil values in Swift code without requiring excessive "bookkeeping" boilerplate to use values that you expect to be non- nil. We intend to provide attributes for Clang to allow APIs to opt in to importing specific parameters, return types, etc. The compiler will now produce an error and provide Fix-Its to rewrite calls to the "keyword-argument" syntax:. The objc attribute now optionally accepts a name, which can be used to provide the name for an entity as seen in Objective-C.
The objc attribute can be used to name initializers, methods, getters, setters, classes, and protocols. Methods, properties and subscripts in classes can now be marked with the final attribute.
This attribute prevents overriding the declaration in any subclass, and provides better performance since dynamic dispatch is avoided in many cases. The , was vestigial when the attribute syntax consisted of bracket lists. The following syntax can be used to introduce guard expressions for patterns inside the case :. Observing properties can now override properties in a base class, so you can observe changes that happen to them. An as cast can now be forced using the postfix!
This keeps us from dropping important parts of a name that happen to be shared by all members. To conform to NSCoding , you will now need to provide. When a class provides no initializers of its own but has default values for all of its stored properties, it will automatically inherit all of the initializers of its superclass.
When one does provide a designated initializer in a subclass, as in the following example:. This provides memory safety for cases where an Objective-C initializer such as -[Document init] in this example appears to be inherited, but isn't actually implemented. This allows calls to Cocoa methods that accept nil selectors.
Because these carry no information about their element types, they may only be used in a context that provides this information through type inference e. Properties defined in classes are now dynamically dispatched and can be overridden with override.
Currently override only works with computed properties overriding other computed properties, but this will be enhanced in coming weeks. The didSet accessor of an observing property now gets passed in the old value, so you can easily implement an action for when a property changes value.
The implicit argument name for set and willSet property specifiers has been renamed from value to newValue. Selector-style methods can now be referenced without applying arguments using member syntax foo. The compiler now warns about cases where a variable is inferred to have AnyObject , AnyClass , or type, since type inference can turn a simple mistake e. Here is a simple example:. If you actually did intend to declare a variable of one of these types, you can silence this warning by adding an explicit type indicated by the Fixit.
C macros that expand to a single constant string are now imported as global constants. All values now have a self property, exactly equivalent to the value itself:.
References to type names are now disallowed outside of a constructor call or member reference; to get a type object as a value, T. This prevents the mistake of intending to construct an instance of a class but forgetting the parens and ending up with the class object instead:. Initializers are now classified as designated initializers , which are responsible for initializing the current class object and chaining via super.
When a subclass overrides all of its superclass's designated initializers, the convenience initializers are inherited:. Note that the syntax and terminology is still somewhat in flux.
Initializers can now be marked as required with an attribute, meaning that every subclass is required to provide that initializer either directly or by inheriting it from a superclass. To construct. Properties in Objective-C protocols are now correctly imported as properties. Previously the getter and setter were imported as methods. Values whose names clash with Swift keywords, such as Cocoa methods or properties named class , protocol , type , etc. The override attribute is now required when overriding a method, property, or subscript from a superclass.
We're renaming val back to let. The compiler accepts both for this week, next week it will just accept let.
Please migrate your code this week, sorry for the back and forth on this. Swift now supports if , else and endif blocks, along with target configuration expressions, to allow for conditional compilation within declaration and statement contexts. Target configurations represent certain static information about the compile-time build environment.
They are implicit, hard-wired into the compiler, and can only be referenced within the conditional expression of an if block.
Target configurations are tested against their values via a pseudo-function invocation expression, taking a single argument expressed as an identifier. The argument represents certain static build-time information. Within the context of an if block's conditional expression, a target configuration expression can evaluate to either true or false. The conditional expression of an if block can be composed of one or more of the following expression types:. Hence, the following produces a parser error:.
Also note that "active" code will be parsed, typechecked and emitted, while "inactive" code will only be parsed. This is why code in an inactive if or else block will produce parser errors for malformed code. This allows the compiler to detect basic errors in inactive regions.
This is the first step to getting functionality parity with the important subset of the C preprocessor. Further refinements are planned for later. Swift now has both fully-closed ranges, which include their endpoint, and half-open ranges, which don't.
Property accessors have a new brace-based syntax, instead of using the former "label like" syntax. The new syntax is:. The syntax for referring to the type of a type, T.
The syntax for getting the type of a value, typeof x , has been changed to x. DynamicSelf is now called Self ; the semantics are unchanged. We will refer to these as deinitializers. We've also dropped the parentheses, i.
Class methods defined within extensions of Objective-C classes can now refer to self , including using instancetype methods. The type keyword was split into two: static and class. One can define static functions and static properties in structs and enums like this:. When using class and static in the extension, the choice of keyword depends on the type being extended:.
The let keyword is no longer recognized. Please move to val. The standard library has been renamed to Swift instead of swift to be more consistent with other modules on our platforms. NSInteger and other types that are layout-compatible with Swift standard library types are now imported directly as those standard library types.
Optional types now support a convenience method named "cache" to cache the result of a closure. When the message send is too long to fit on a single line, subsequent lines must be indented from the start of the statement or declaration. For example, this is a single message send:. We are renaming the let keyword to val. The let keyword didn't work out primarily because it is not a noun, so "defining a let" never sounded right.
We chose val over const and other options because var and val have similar semantics making syntactic similarity useful , because const has varied and sordid connotations in C that we don't want to bring over, and because we don't want to punish the "preferred" case with a longer keyword.
For migration purposes, the compiler now accepts let and val as synonyms, let will be removed next week. Selector arguments in function arguments with only a type are now implicitly named after the selector chunk that contains them. For example, instead of:. The inout attribute in argument lists has been promoted to a context-sensitive keyword.
Where before you might have written:. We made this change because inout is a fundamental part of the type system, which attributes are a poor match for. The inout keyword is also orthogonal to the var and let keywords which may be specified in the same place , so it fits naturally there.
The mutating attribute which can be used on functions in structs, enums, and protocols has been promoted to a context-sensitive keyword. Mutating struct methods are now written as:. Half-open ranges those that don't include their endpoint are now spelled with three. Next week, we'll introduce a fully-closed range which does include its endpoint. This will provide:. These changes are being released separately so that users have a chance to update their code before its semantics changes.
For example, the Objective-C property. Now, it is imported as a property enabled. Objective-C instancetype methods are now imported as methods that return Swift's DynamicSelf type.
While DynamicSelf is not generally useful for defining methods in Swift, importing to it eliminates the need for casting with the numerous instancetype APIs, e. If the condition of an if or while statement is a let declaration, then the right-hand expression is evaluated as an Optional value, and control flow proceeds by considering the binding to be true if the Optional contains a value, or false if it is empty, and the variables are available in the true branch.
This allows for elegant testing of dynamic types, methods, nullable pointers, and other Optional things:. When referring to a member of an AnyObject or AnyClass object and using it directly such as calling it, subscripting, or accessing a property on it , one no longer has to write the? The run-time check will be performed implicitly.
Note that one can still test whether the member is available at runtime using? The swift command line tool can now create executables and libraries directly, just like Clang. Use swift main. Object files emitted by Swift are not debuggable on their own, even if you compiled them with the -g option. This was already true if you had multiple files in your project. To produce a debuggable Swift binary from the command line, you must compile and link in a single step with swift , or pass object files AND swiftmodule files back into swift after compilation.
Or use Xcode. The current directory is no longer implicitly an import path. Use -I. Properties in structs and classes may now have willSet: and didSet: observing accessors defined on them:. Similarly, if you want notification before the value is stored, you can use willSet , which gets the incoming value before it is stored:.
It is not possible to have a custom getter or setter on an observed property, since they have storage. Because of the first one, for now, you need to explicitly store an initial value to the property in your init method. Objective-C properties with custom getter or setter names are temporarily not imported into Swift; the getter and setter will be imported individually as methods instead. Previously, they would appear as properties within the Objective-C class, but attempting to use the accessor with the customized name would result in a crash.
Computed 'type' properties that is, properties of types, rather than of values of the type are now permitted on classes, on generic structs and enums, and in extensions. Stored 'type' properties in these contexts remain unimplemented. The following command-line flags have been deprecated in favor of new spellings. The old spellings will be removed in the following week's build:. They can also be initialized to the empty set with nil. These are equivalent:.
The swift binary no longer has an SDK set by default. Instead, you must do one of the following:. A let property is mutable within init , and immutable everywhere else. The immutability model for structs and enums is complete, and arguments are immutable by default.
This allows the compiler to reject mutations of temporary objects, catching common bugs. For example, this is rejected:. The proper fix in this case is to mark the argument is inout , so the effect is visible in the caller:.
Alternatively, if you really just want a local copy of the argument, you can mark it var. The effects aren't visible in the caller, but this can be convenient in some cases:. Objective-C instance variables are no longer imported from headers written in Objective-C.
Previously, they would appear as properties within the Objective-C class, but trying to access them would result in a crash. Additionally, their names can conflict with property names, which confuses the Swift compiler, and there are no patterns in our frameworks that expect you to access a parent or other class's instance variables directly. Use properties instead. Improved deallocation of Swift classes that inherit from Objective-C classes: Swift destructors are implemented as -dealloc methods that automatically call the superclass's -dealloc.
Stored properties are released right before the object is deallocated using the same mechanism as ARC , allowing properties to be safely used in destructors. Subclasses of NSManagedObject are now required to provide initial values for each of their stored properties.
Curried and selector-style arguments are now immutable by default, and let declarations now get proper debug information. The static keyword changed to type.
One can now define "type functions" and "type variables" which are functions and variables defined on a type rather than on an instance of the type , e. Note that type is a context-sensitive keyword; it can still be used as an identifier. Initializers can now delegate to other initializers within the same class by calling self. Objective-C protocols no longer have the Proto suffix unless there is a collision with a class name.
Division and remainder arithmetic now trap on overflow. Like with the other operators, one can use the "masking" alternatives to get non-trapping behavior. The behavior of the non-trapping masking operators is defined:. Protocol conformance checking for mutating methods is now implemented: an mutating struct method only fulfills a protocol requirement if the protocol method was itself marked mutating :.
As before, class methods never need to be marked mutating and indeed, they aren't allowed to be marked as such. To mark a setter non-mutating, use the! Compiler inserts calls to super. Global variables and static properties are now lazily initialized on first use. Swift has the start of an immutability model for value types. As part of this, you can now declare immutable value bindings with a new let declaration, which is semantically similar to defining a get-only property:.
In the case of bindings of class type, the bound object itself is still mutable, but you cannot change the binding. In addition to the let declaration itself, self on classes, and a few other minor things have switched to immutable bindings. A pivotal part of this is that methods of value types structs and enums need to indicate whether they can mutate self - mutating methods need to be disallowed on let values and get-only property results, temporaries, etc but non-mutating methods need to be allowed.
The default for a method is that it does not mutate self , though you can opt into mutating behavior with a new mutating attribute:. One missing piece is that the compiler does not yet reject mutations of self in a method that isn't marked mutating. That will be coming soon. Related to methods are properties.
Likewise any non-existent filenames would throw a error. The reason? I'm sure you wouldn't want users to be able to downlaod any file from your application at their own will. Read more about sending files in Flask over at the official documentation, linked here.
Drop the app. Using the sass, rcssmin and rjsmin Python packages to optimize web assets, including Bootstrap. Using Python decorators to add another layer of functionality to Flask routes.
Home Articles Categories Series. Message 4 of 8. Message 5 of 8. Message 6 of 8. We have people that are having the same issues Any other suggestions before we escalate? Message 7 of 8. The install couldn't finish.
Error 5.
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