Gerardosharlenelelia's Profile

145
Points

Questions
27

Answers
47

  • Asked on July 17, 2020 in Python.

    Here’s how they do it in awscli :

    def find_bucket_key(s3_path):     """     This is a helper function that given an s3 path such that the path is of     the form: bucket/key     It will return the bucket and the key represented by the s3 path     """     s3_components = s3_path.split('/')     bucket = s3_components[0]     s3_key = ""     if len(s3_components) > 1:         s3_key = '/'.join(s3_components[1:])     return bucket, s3_key   def split_s3_bucket_key(s3_path):     """Split s3 path into bucket and key prefix.     This will also handle the s3:// prefix.     :return: Tuple of ('bucketname', 'keyname')     """     if s3_path.startswith('s3://'):         s3_path = s3_path[5:]     return find_bucket_key(s3_path) 

    Which you could just use with code like this

    from awscli.customizations.s3.utils import split_s3_bucket_key import boto3 client = boto3.client('s3') bucket_name, key_name = split_s3_bucket_key(     's3://example-bucket-name/path/to/example.txt') response = client.get_object(Bucket=bucket_name, Key=key_name) 

    This doesn’t address the goal of interacting with an s3 key as a file like object but it’s a step in that direction.

    • 18 views
    • 6 answers
    • 0 votes
  • Asked on July 17, 2020 in XML.

    Try to Dispose the FileStream object at the end of ReadXml and WriteXml methods.

    • 8 views
    • 3 answers
    • 0 votes
  • Asked on July 17, 2020 in XML.

    The usual boilerplate is:

    tree = etree.parse('pom.xml')  root = tree.getroot() 

    and from there:

    depend = root.xpath("//*[local-name()='dependency']") 

    etc. Try it and see if it works.

    • 9 views
    • 1 answers
    • 0 votes
  • bind the IsVisible property to a VM property

    <Button x:Name="Button_Round"  IsVisible="{Binding ButtonVisible}" ... /> 

    then in your VM (your VM must implement INotifyPropertyChanged)

    private bool _ButtonVisible = true;  public bool ButtonVisible {   get {     return _ButtonVisible;   }   set {      _ButtonVisible = value;      PropertyChanged("ButtonVisible");   }  } 

    then whenever your receive the response from the server, you can set ButtonVisible to the appropriate value

    • 8 views
    • 1 answers
    • 0 votes
  • You need to set the JsonSerializer options not to encode those strings.

    JsonSerializerOptions jso = new JsonSerializerOptions(); jso.Encoder = System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping; 

    Then you pass this options when you call your Serialize method.

    var s = JsonSerializer.Serialize(a, jso);         

    Full code:

    JsonSerializerOptions jso = new JsonSerializerOptions(); jso.Encoder = System.Text.Encodings.Web.JavaScriptEncoder.UnsafeRelaxedJsonEscaping;  var a = new A { Name = "你好" }; var s = JsonSerializer.Serialize(a, jso);         Console.WriteLine(s); 

    Result:

    enter image description here

    If you need to print the result in the console, you may need to install additional language. Please refer here.

    • 9 views
    • 2 answers
    • 0 votes
  • Asked on July 16, 2020 in .NET.

    I’m not sure what you are trying to achieve, here is the code to get a line with 2 previous lines:

            var lines = File.ReadAllLines("DeadByDaylightCopy.log");          for (int i = 0; i < lines.Length; i++)         {             var linesAnd2PreviousLines = lines[Math.Max(0, i - 2)..(i + 1)];         } 
    • 10 views
    • 2 answers
    • 0 votes
  • Asked on July 16, 2020 in Mysql.

    If your invoice_date is a string in format ‘%d/%m/%Y’ instead of cast you should use str_to_date

    SELECT *  FROM stockmanagement2.invoice_item WHERE str_to_date(invoice_date, '%d/%m/%Y')       BETWEEN  str_to_date('01/07/2019' ,  '%d/%m/%Y')          AND  str_to_date('31/07/2019' ,  '%d/%m/%Y') 
    • 7 views
    • 1 answers
    • 0 votes
  • Asked on July 16, 2020 in Mysql.

    I use Objective-C to slap the UI together.
    But the hard guts of the code is still written in C++.

    That is the main purpose of Objective-C the UI interface and handling the events.
    And it works great for that purpose.

    I still like C++ as the backend for the code though (but that’s mainly becuase I like C++) you could quite easily use Objective-C for the backend of the application as well.

    • 0 views
    • 11 answers
    • 0 votes
  • Asked on July 16, 2020 in Mysql.

    Your question is a little unclear on what exactly you’d be looking for, as well the comp table only has one employee on it so it would always be EID 1 or Dee. Not sure if this is a mistake or now.

    Besides that, I think there are a few different ways of doing this. How I would do it would be to join the tables where the EID is equal to each other, order the table by the salary in ascending order, and then limit to 1. This should give you one record of who has the highest compensation.

    However, this does not take into account the dates and stuff. The question is a little unclear. If you wanted something like that, then you’d but using a subquery to calculate the salary * date-difference then doing something similar to above.

    Hope this gets you pointed into a better direction! Good luck!

    • 7 views
    • 1 answers
    • 0 votes
    • 5 views
    • 1 answers
    • 0 votes