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>>> help(copy.copy) Help on function copy in module copy: copy(x) Shallow copy operation on arbitrary Python objects. See the module's __doc__ string for more info. >>> This is interesting: it tells you that copy takes a single argument x, and that it is a shallow copy operation. But it also mentions the module s __doc__ string. What s that You may remember that I mentioned docstrings in 6. A docstring is simply a string you write at the beginning of a function to document it. That string is then stored in the function attribute __doc__. As you may understand from the preceding help text, modules may also have docstrings (they are written at the beginning of the module), as may classes (they are written at the beginning of the class). Actually, the preceding help text was extracted from the copy function s docstring: >>> print copy.copy.__doc__ Shallow copy operation on arbitrary Python objects. See the module's __doc__ string for more info. The advantage of using help over just examining the docstring directly like this is that you get more info, such as the function signature (that is, what arguments it takes). Try to call help(copy) (on the module itself) and see what you get. It prints out a lot of information, including a thorough discussion of the difference between copy and deepcopy (essentially that deepcopy(x) makes copies of the values stored in x as attributes and so on, while copy(x) just copies x, binding the attributes of the copy to the same values as those of x). .net pdf 417 PDF - 417 C# Control - PDF - 417 barcode generator with free C# ...
Developers can easily create and display Data Matrix in ASP. NET web pages, Windows Forms & Crystal Reports with C# programming. ... Or you can add the barcode library to reference and generate PDF - 417 with Visual C# Class Library / Console Application. ... This barcode generator for . NET ... .net pdf 417 PDF417 Barcode Decoder . NET Class Library and Two Demo Apps ...
2 May 2019 ... NET framework. It is the second article published by this author on encoding and decoding of PDF417 barcodes. The first article is PDF417 ... We need form templates for both the request and password resetting actions. Let s start by creating app/views/account/forgot_password.rhtml and adding the following code to it: <p>Give your email address and we'll send you instructions on how to create a new one.</p> <%= form_tag %> <label for="email">Email</label><br /> <%= text_field_tag "email" %><br /> <%= submit_tag "Submit" %> <%= end_form_tag %> The form is extremely simple, consisting of one text field for the e-mail address and a Submit button, as shown in Figure 8-4. .net pdf 417 ASP. NET PDF-417 Barcode Generator - Generate 2D PDF417 in ...
NET PDF-417 Barcode Generation Tutorial contains information on barcoding in ASP.NET website with C# & VB class and barcode generation in Microsoft IIS ... .net pdf 417 C#. NET PDF-417 Generator Control - Generate PDF417 Barcode in ...
NET PDF-417 Generator SDK Tutorial tells users how to generate 2D PDF-417 Barcodes in .NET Framework with C# class. Clicking on any of the customers listed in the manage custmers grid view will bring up the customer details page. The customer details page includes customer account information, a list of address they ve used, their order history, and items they currently have in their shopping cart. The customer details page also keeps organized totals on how much customers have bought total and how much their average purchases were for (see Figure 4-30). .net pdf 417 Best 20 NuGet pdf417 Packages - NuGet Must Haves Package
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PDF417 is a stacked linear barcode format used in a variety of applications such as transport, identification cards, and inventory management. "PDF" stands for ... Notice that since we re posting the form back to the current action, we don t even need to specify an address for form_tag. The reset form in app/views/account/reset_password.rhtml is almost as simple as the request form: <%= error_messages_for :user %> <%= form_tag %> <p><label for="user_password">Password:</label><br /> <%= password_field :user, :password %></p> <p><label for="user_password_confirmation">Confirm password:</label><br /> <%= password_field :user, :password_confirmation %></p> <p><%= submit_tag "Submit" %></p> <%= end_form_tag %> Here, we just show two password fields: one for the actual password and one for a confirmation. Since the User class has a validates_confirmation_of validation specified for the password attribute, the password confirmation is automatically checked against the password. After that, it is stripped from the new User object before saving. If the two passwords don t match, @user can t be saved, and the form is shown with an error notification by using the error_messages_for call, as shown in Figure 8-5. A natural source for information about a module is, of course, its documentation. I ve postponed the discussion of documentation because it s often much quicker to just examine the module a bit yourself first. For example, you may wonder, What were the arguments to range again Instead of searching through a Python book or the standard Python documentation for a description of range, you can just check it directly: >>> print range.__doc__ range([start,] stop[, step]) -> list of integers Return a list containing an arithmetic progression of integers. range(i, j) returns [i, i+1, i+2,..., j-1]; start (!) defaults to 0. When step is given, it specifies the increment (or decrement). For example, range(4) returns [0, 1, 2, 3]. The end point is omitted! These are exactly the valid indices for a list of 4 elements. Figure 4-30. The customer details page provides an in-depth look at a customer s details, including orders, wish lists, and product reviews. Figure 8-5. Error message when passwords do not match We now have a working authentication system in our application. It could be easily extended to support open user registration, role-based authentication, reversible encrypted passwords, and remember me functionality. For instructions on how to implement these .net pdf 417 2D barcode PDF417 library download | SourceForge. net
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C#. NET PDF-417 Barcode Generator Control helps .NET developers generate & create 2d PDF-417 barcode images in .NET 2.0 and greater .NET framework ...
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