treelib | efficient implementation of tree data structure | Dataset library

 by   caesar0301 Python Version: 1.7.0 License: Non-SPDX

kandi X-RAY | treelib Summary

kandi X-RAY | treelib Summary

treelib is a Python library typically used in Artificial Intelligence, Dataset, Example Codes applications. treelib has no bugs, it has no vulnerabilities, it has build file available and it has low support. However treelib has a Non-SPDX License. You can install using 'pip install treelib' or download it from GitHub, PyPI.

Tree implementation in python: simple for you to use.
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              treelib has a low active ecosystem.
              It has 733 star(s) with 173 fork(s). There are 32 watchers for this library.
              There were 1 major release(s) in the last 12 months.
              There are 51 open issues and 71 have been closed. On average issues are closed in 481 days. There are 10 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of treelib is 1.7.0

            kandi-Quality Quality

              treelib has 0 bugs and 0 code smells.

            kandi-Security Security

              treelib has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              treelib code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              treelib has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              treelib releases are available to install and integrate.
              Deployable package is available in PyPI.
              Build file is available. You can build the component from source.
              Installation instructions are not available. Examples and code snippets are available.
              treelib saves you 708 person hours of effort in developing the same functionality from scratch.
              It has 1636 lines of code, 173 functions and 16 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed treelib and discovered the below as its top functions. This is intended to give you an instant insight into treelib implemented functionality, and help decide if they suit your requirements.
            • Do the crawler
            • Update the successors of a node
            • Return the parent id of the given tree
            • Return a unique note id
            • Calculate the CRC of a string
            • Return the successors of the given tree
            • Print node information
            • Set the predecessor of a node nid
            • Recursively build tree
            • Create a family tree
            • Returns the bpointer of the predecessor
            • Return the fpointer of the tree
            • Set the successors of the tree
            • The identifier for this request
            • Set unique identifier
            • Example example
            Get all kandi verified functions for this library.

            treelib Key Features

            No Key Features are available at this moment for treelib.

            treelib Examples and Code Snippets

            Iterating through tree datastructure using Treelib (Python)
            Pythondot img1Lines of Code : 20dot img1License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            class MyNode(object):
                def __init__(self, id, label):
                    self.id = id
                    self.label = label
            
            
            from treelib import Tree
            tree = Tree()
            
            def add_node(id, label, parent=None):
                node = MyNode(id, label)
                tree.create_node(tag=
            How can I convert a list of dicts showing hierarchical relationships into a tree?
            Pythondot img2Lines of Code : 22dot img2License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            l = [
                {"node": "root", "children": ["a"]},
                {"node": "a", "children": ["b", "b"]},
                {"node": "b", "children": ["c", "c", "c"]},
                {"node": "c", "children": ["d"]},
            ]
            
            compressed = {e["node"]: e["children
            How can I obtain a Treelib representation of the below nested list?
            Pythondot img3Lines of Code : 114dot img3License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            import treelib, itertools as it, collections as ct
            lst = [1,['a','b','c','d',['s','t',['ab','cd',['a','b'],'ef'],'u'],'f']] 
            tree = treelib.Tree()
            c = ct.defaultdict(lambda :it.count(1))
            def build_tree(d, t, p = None):
               last_p = None
               
            How does the insertion of nodes in a tree work using the treelib library in python?
            Pythondot img4Lines of Code : 4dot img4License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            E
            ├── A
            └── B
            
            Visualizing Parse tree - nested list to tree in python
            Pythondot img5Lines of Code : 49dot img5License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            from treelib import Node, Tree
            
            
            lst = ["S", ["NP", ["DT", "the"], ["NN", "dog"]], ["VP", ["Vt", "saw"], ["NP", ["NP", ["DT", "the"], ["NN", "man"]],
                                                                               ["PP", ["P", "with"],
            
            Pandas Dataframe - Assy and Sub-Assy Numbering System without Loop
            Pythondot img6Lines of Code : 63dot img6License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            # the working dataset
            df2 = df.iloc[:, :4].reset_index(drop=True)  # make a copy
            df2.columns = range(4)  # rename columns to (0,1,2,3) for convenience
            
            # output container
            arr = np.zeros(df2.shape, dtype=int) 
            
            # state variable: level of th
            Recursive co-tree Generation algorithm
            Pythondot img7Lines of Code : 59dot img7License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
                comp_graph_components = [complement.subgraph(c).copy() for c in nx.connected_components(complement)]
            
                        for subgraph in comp_graph_components:
            
                            generate_cotree(subgraph,tree_pointer=tree_ptr)
            
            Print a tree from a given dictionary
            Pythondot img8Lines of Code : 23dot img8License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            from treelib import Node, Tree
            
            my_dict = {'S': {1: 'AbB', 2: 'bbS'}, 'AbB': {1: 'bAbbB', 2: 'abB'}, 'bAbbB': {}, 'abB': {1: 'abAaA', 2: 'abbBB', 3: 'abb'}, 'abAaA': {}, 'abbBB': {}, 'abb': {}, 'bbS': {}}
            
            
            def add_children(data, tree, nod
            Convert skeleton of binary image to polylines
            Pythondot img9Lines of Code : 178dot img9License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            from treelib import Tree
            
            def extract_regions(image):
            """
            Extracts 8-neighbors-connected regions from a binary image.
            :param image: A homogeneous list of lists containing binary values (booleans or 1s and 0s).
            :return: A list of trees cont
            Sort a column so that one column follows the values from another column
            Pythondot img10Lines of Code : 14dot img10License : Strong Copyleft (CC BY-SA 4.0)
            copy iconCopy
            def getDescendants(curr, par, level):
                res = [[curr, par, level]]
                children = df.query('Parent == @curr')
                for n in children.Child:
                    if n != par:
                        deeper = getDescendants(n, curr, level + 1)
                        if len(de

            Community Discussions

            QUESTION

            Iterating through tree datastructure using Treelib (Python)
            Asked 2021-Dec-21 at 16:30

            I created some nodes by a Node-class and added them to a tree using Treelib.

            ...

            ANSWER

            Answered 2021-Dec-21 at 16:30

            First some remarks:

            • I would use a different name for the class Node; as also TreeLib defines a Node class.
            • As you use TreeLib there should not be a need to maintain parent-references in your own class instances. This is something that TreeLib manages for you already.

            You can iterate over the nodes with the all_nodes_itr method, which will give you a TreeLib Node instance in each iteration. You can then access TreeLib attributes such as identifier or parent. For your own attributes, access the data attribute, and then the attribute you want to see (like label)

            Here is a simplified script:

            Source https://stackoverflow.com/questions/70435704

            QUESTION

            How can I convert a list of dicts showing hierarchical relationships into a tree?
            Asked 2021-Jul-11 at 22:07

            I have this list of dicts:

            ...

            ANSWER

            Answered 2021-Jul-11 at 22:07

            First, I would convert this:

            Source https://stackoverflow.com/questions/68339470

            QUESTION

            How can I obtain a Treelib representation of the below nested list?
            Asked 2021-Jul-11 at 22:04

            I'm trying to convert a nested list into a Treelib representation.

            The desired structure of the tree is such that all elements within a list that are not of the type list are at the same hierarchy. A sub-list in the nested list is the child of the element (this has to be an element which is not of type list) immediately preceding it. For instance,

            ...

            ANSWER

            Answered 2021-Jul-11 at 22:04

            You can recursively traverse your list, keeping track of the parent:

            Source https://stackoverflow.com/questions/68338324

            QUESTION

            How does the insertion of nodes in a tree work using the treelib library in python?
            Asked 2020-Nov-07 at 21:46

            how are you guys?
            I'm having doubts with a python library, called treelib. I noticed that when using the 'tree.show ()' function it returns the tree with the children sorted in alphabetical order and this raised the question of how the insertion in this library works. I went to their source code, but as I'm starting in python I didn't understand how the insertion of the node in the tree worked ... So, someone who uses this library knows how to inform me if in an insert like the one below:

            ...

            ANSWER

            Answered 2020-Nov-07 at 21:46

            According to the documentation, your tree should look like this:

            Source https://stackoverflow.com/questions/64732700

            QUESTION

            Recursive co-tree Generation algorithm
            Asked 2020-Aug-27 at 10:33

            At pg.7 on >this article< there is a recursive algorithm that explains the generation of a co-tree given the co-graph. Based on this article I am trying to implement it in python3 using the library NetworkX for the graph structures and the library treelib for the tree data structure.

            In order to be precise, I have created exactly the same graph of the example (once again at pg.7 of the aforementioned article) and I have written the following function:

            ...

            ANSWER

            Answered 2020-Aug-27 at 10:33

            So, I figured it out. (Ι think ^^)

            When the code below gets executed:

            Source https://stackoverflow.com/questions/63495963

            QUESTION

            Print a tree from a given dictionary
            Asked 2020-May-27 at 00:49

            I have a python dictionary and I would like to create a tree from it. I`m using the treelib library to print it. The dictionary looks something like this:

            ...

            ANSWER

            Answered 2020-May-27 at 00:49

            There are two problems inherent to your data structure:

            • What if two children have the same label? I.e. what if the root has children 'A' and 'B', but both 'A' and 'B' have a child called 'a'? We can only assume that never happens, but in realistic trees (for instance a file system) it's common (i.e. two folders can both have sub-folders with the same name, but different contents)

            • What if a loop is introduced, like {'S': {'a'}, 'a': {'b'}, 'b': {'a'}}

            I'm going to assume your tree has neither loops nor duplicates, but that's quite an assumption.

            Since your data structure has no way of telling on what level its values are, the best way to go about this would be: whenever you add a node, first check if it has children and add them, before moving on to the siblings:

            Source https://stackoverflow.com/questions/62033519

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install treelib

            You can install using 'pip install treelib' or download it from GitHub, PyPI.
            You can use treelib like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

            Support

            For installation, APIs and examples, see http://treelib.readthedocs.io/en/latest/.
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            Install
          • PyPI

            pip install treelib

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            https://github.com/caesar0301/treelib.git

          • CLI

            gh repo clone caesar0301/treelib

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            git@github.com:caesar0301/treelib.git

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