PlItems

ID: 191
PlCodelang: Python
PlGroup: Encoding / Decoding
PlItemTitle: md5-Hash erzeugen
Code: # https://docs.python.org/2/library/hashlib.html import hashlib a = "hello world" b = 0.1 md5str = hashlib.md5(str(b) + a).hexdigest()

ID: 192
PlCodelang: Python
PlGroup: Filehandling
PlItemTitle: Prüfen ob Datei existiert
Code: import os filePath="/home/myUser/test.txt" if (os.path.isfile(filePath)): print "There it is! ;-)" else: print "Whow, file is missing at this place :-("

ID: 193
PlCodelang: Python
PlGroup: Array
PlItemTitle: Dictionary Basics
Code: # empty dict myDict = {} # some static values myDict ={ "key1" : {"item1":"value1"}, "key2" : {"itemX":"valueY"}, "keyX" : {"item99":"value98"} } # update a key programmatically myDict.update({"key1" = {"item2":"new value"}}) # iterate for (key, subdict) in myDict.items(): current_key = key current_subdict = subdict # get an specific item subdict = myDict.get("key2") print subdict.get("itemX") # valueY

ID: 194
PlCodelang: Python
PlGroup: Filehandling
PlItemTitle: Filename-Manipultation Basics
Code: import os myFilename = "/tmp/Test/myFile.txt" # Get only the path path_only = os.path.dirname(myFilename) # /tmp/Test # Filename only filename_only = os.path.basename(myFilename) # myFile.txt # get only filename without extention filename_without_ext = os.path.basename(os.path.splitext(myFilename)[0]) # myFile # get only the extension filename_extention_only = os.path.splitext(myFilename)[1] # .txt # put them together again myFilename_together = os.path.join(path_only, filename_without_ext + filename_extention_only) # /tmp/Test/myFile.txt

ID: 195
PlCodelang: Python
PlGroup: Exceptions
PlItemTitle: Exception auslösen
Code: if (a!=b): raise Exception("Not implemented, yet")

ID: 196
PlCodelang: Python
PlGroup: JSON
PlItemTitle: JSON Daten laden
Code: import json myJSONFile = "/tmp/Test/myData.json" json_data = open(myJSONFile) # In Python werden JSON Daten nach dem Laden wie Dictionaries behandelt data_dict = json.load(json_data)

ID: 197
PlCodelang: Python
PlGroup: JSON
PlItemTitle: JSON Daten speichern
Code: myData_dict = {"key1":"value1"} fileObj = open('myData.json', 'w+') jsonDump = json.dumps(myData_dict) fileObj.write(jsonDump) fileObj.close()

ID: 204
PlCodelang: Python
PlGroup: Fallunterscheidung
PlItemTitle: Ternary operator
Code: thisVar = "OK" resultVar = False # [on_true] if [cond] else [on_false] resultVar = True if thisVar == "OK" else False // same as if-else construction if (thisVar == "OK"): resultVar = True else: resultVar = False

ID: 215
PlCodelang: Python
PlGroup: Strings
PlItemTitle: Replace
Code: # http://www.tutorialspoint.com/python/string_replace.htm str1 = "abc#def" str1 = str1.replace("#",';") print str1 # Output: abc;def

ID: 240
PlCodelang: Python
PlGroup: Strings
PlItemTitle: Text in Großschrift oder Kleinschrift
Code: myString = "my lovely Mr Singing Club" print myString.upper() // MY LOVELY MR SINGING CLUB print myString.lower()

ID: 249
PlCodelang: Python
PlGroup: Systeminfo
PlItemTitle: Betriebssystem ermitteln
Code: import os os.name # nt, posix import platform platform.system() # 'Windows', 'Linux', 'Darwin' platform.release() # Linux, Windows, Windows, Darwin '2.6.22-15-generic', 'Vista' ,'10', '8.11.1' # Example from https://stackoverflow.com/questions/1854/python-what-os-am-i-running-on from sys import platform as _platform if _platform == "linux" or _platform == "linux2": # linux elif _platform == "darwin": # MAC OS X elif _platform == "win32": # Windows elif _platform == "win64": # Windows 64-bit

ID: 251
PlCodelang: Python
PlGroup: Strings
PlItemTitle: Erster Buchstable Groß in Wort
Code: # Siehe auch: http://www.php2python.com/wiki/function.ucwords/ myString = "nothingspecial" import string uc = string.capwords(myString) print(uc) # Nothingspecial

ID: 252
PlCodelang: Python
PlGroup: Dateihandling
PlItemTitle: Textdatei schreiben
Code: # Modes # r: Read mode which is used when the file is only being read # w: Write mode which is used to edit and write new information to the file (any existing files with the same name will be erased when this mode is activated) # a: Appending mode, which is used to add new data to the end of the file; that is new information is automatically amended to the end # r+: Special read and write mode, which is used to handle both actions when working with a file myFile = open("myFile.txt","w") myFile.write("Hello World") myFile.close()

ID: 106
PlCodelang: WPF
PlGroup: GUI, .NET-WPF
PlItemTitle: WPF - Style MultiTrigger
Code: <Style TargetType="Button"> <Style.Triggers> <MultiTrigger> <MultiTrigger.Conditions> <Condition Property="IsMouseOver" Value="True" /> <Condition Property="Content" Value="Button 2" /> </MultiTrigger.Conditions> <Setter Property="FontWeight" Value="Bold"/> </MultiTrigger> </Style.Triggers> </Style>

ID: 111
PlCodelang: HTML
PlGroup: Sonstiges
PlItemTitle: RSS Hinweis
Code: <link rel="alternate" type="application/rss+xml" title="RSS Feed" href="Feed-URL"/>

ID: 112
PlCodelang: Android
PlGroup: GUI, Dialoge
PlItemTitle: Hinweis-Dialog
Code: AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setMessage("Hinweis") .setTitle("Hinweis-Meldung") .setNeutralButton("OK", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.cancel(); } }); AlertDialog alert = builder.create(); alert.show();

ID: 113
PlCodelang: Android
PlGroup: GUI, Dialoge
PlItemTitle: Abfrage-Dialog
Code: // siehe auch : http://developer.android.com/guide/topics/ui/dialogs.html AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setMessage("Are you sure you want to exit?") .setCancelable(false) .setPositiveButton("Yes", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { WhatHaveYouDoneActivity.this.finish(); } }) .setNegativeButton("No", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { dialog.cancel(); } }); AlertDialog alert = builder.create(); alert.show();

ID: 114
PlCodelang: Android
PlGroup: GUI, ComboBox
PlItemTitle: ComboBox füllen
Code: public void fillSpn() { String dummyarr[]; Spinner spn1 = (Spinner) findViewById(R.id.spn1); // Dummy Data dummyarr = new String[5]; int i; for (i=0;i<5;i++) { dummyarr[i]=String.valueOf(i); } ArrayAdapter adapter = new ArrayAdapter(this, android.R.layout.simple_spinner_dropdown_item, dummyarr); spn1.setAdapter(adapter); }

ID: 115
PlCodelang: SSRS
PlGroup: Zahlen/Rechnen
PlItemTitle: DIV/0
Code: ' siehe auch: http://blogs.msdn.com/b/bwelcker/archive/2006/09/26/end-of-amnesia-_2800_avoiding-divide-by-zero-errors_2900_.aspx =IIf(Fields!SecondVal.Value = 0, "0", Fields!FirstVal.Value*100 / IIf(Fields!SecondVal.Value = 0, 1, Fields!SecondVal))

ID: 269
PlCodelang: PL/pgSQL
PlGroup: Datenbank
PlItemTitle: UPDATE SQL mit JOIN
Code: UPDATE TableToBeUpdated SET myField1 = 'Update this field' FROM ( SELECT * FROM JoinedTable WHERE cond1 = 1 ) J WHERE J.ID = TableToBeUpdated.ID ;