CLI Usage

From treevalue version 0.1.0, simple CLI (Command Line Interface) is provided to simplify some operations and optimize the use experience. This page will introduce the usage of cli.

Version Display

You can see the version information with the following command typing into the terminal:

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treevalue -v

The output should be

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Treevalue, version 1.2.1.
Developed by HansBug (hansbug@buaa.edu.cn), DI-engine's Contributors.

Note

You can check if the treevalue package is installed properly with this command line since version 0.1.0.

Help Information Display

You can see the help information of this cli by the following command line:

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treevalue -h

The output should be

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Usage: treevalue [OPTIONS] COMMAND [ARGS]...

Options:
  -v, --version  Show package's version information.
  -h, --help     Show this message and exit.

Commands:
  export  Export trees to binary files, compression is available.
  graph   Generate graph by trees and graphviz elements.

There are several sub commands in treevalue cli, and they will be introduced in the following sections.

Exporting Trees to Binary

First, let’s see what is in treevalue export sub command.

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Usage: treevalue export [OPTIONS]

  Export trees to binary files, compression is available.

Options:
  -t, --tree TEXT            Trees to be imported from packages, such as '-t
                             my_tree.t1'.
  -o, --output FILE          Output file path, multiple output is supported.
  -d, --directory DIRECTORY  Directory to save the exported trees.
  -c, --compress TEXT        Compress algorithm, can be a single lib name or a
                             tuple, default use 'zlib'.
  -r, --raw                  Disable all the compression, just export the raw
                             data.
  -h, --help                 Show this message and exit.

In this sub command, we can export a tree value object to binary file with dump, dumps function define in module treevalue.tree.tree.

Note

For further information, take a look at:

  • API Documentation of dump.

  • API Documentation of dumps.

Export One Tree

Before exporting, we prepare a python source code file tree_demo.py with the content of

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from treevalue import FastTreeValue

t1 = FastTreeValue({'a': 1, 'b': 2, 'x': {'c': 3, 'd': 4}})
t2 = FastTreeValue({'a': 11, 'b': 24, 'x': {'c': 30, 'd': 47}})
t3 = t1 + t2

And then we can to export t1 to binary file, like this

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treevalue export -t 'tree_demo.t1' -o export_t1.dat.btv
ls -al export_t1.dat.btv

A binary file named export_t1.dat.btv will be exported.

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Exporting tree 't1.btv' to binary file '/tmp/tmp4q2ykbbk/4fbd95995e129b482e0fe5ea376b6f08c7e893f0/docs/source/tutorials/cli_usage/export_t1.dat.btv' ... OK.
-rw-r--r-- 1 runner docker 156 Oct 16 12:28 export_t1.dat.btv

The binary file is exported with the dump function, and the compression algorithm used is the default one zlib.

Export Multiple Trees Once

We can export multiple trees at one time with the following command

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treevalue export -t 'tree_demo.*' -o 'me_t1.dat.btv' -o 'me_t2.dat.btv' -o 'me_t3.dat.btv'
ls -al me_*.btv

Three binary files named me_t1.dat.btv, me_t2.dat.btv and me_t3.dat.btv will be exported.

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Exporting tree 't1.btv' to binary file '/tmp/tmp4q2ykbbk/4fbd95995e129b482e0fe5ea376b6f08c7e893f0/docs/source/tutorials/cli_usage/me_t1.dat.btv' ... OK.
Exporting tree 't2.btv' to binary file '/tmp/tmp4q2ykbbk/4fbd95995e129b482e0fe5ea376b6f08c7e893f0/docs/source/tutorials/cli_usage/me_t2.dat.btv' ... OK.
Exporting tree 't3.btv' to binary file '/tmp/tmp4q2ykbbk/4fbd95995e129b482e0fe5ea376b6f08c7e893f0/docs/source/tutorials/cli_usage/me_t3.dat.btv' ... OK.
-rw-r--r-- 1 runner docker 156 Oct 16 12:28 me_t1.dat.btv
-rw-r--r-- 1 runner docker 156 Oct 16 12:28 me_t2.dat.btv
-rw-r--r-- 1 runner docker 156 Oct 16 12:28 me_t3.dat.btv

Export Tree with Compression

We can assign compression algorithm by the -c option, like this

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treevalue export -t 'tree_demo.t1' -c gzip -o compress_t1.dat.btv
ls -al compress_t1.dat.btv

The binary file named compress_t1.dat.btv will be exported with the gzip compression, and will be able to be loaded with treevalue graph cli and load function without the assignment of decompression algorithm.

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Exporting tree 't1.btv' to binary file '/tmp/tmp4q2ykbbk/4fbd95995e129b482e0fe5ea376b6f08c7e893f0/docs/source/tutorials/cli_usage/compress_t1.dat.btv' ... OK.
-rw-r--r-- 1 runner docker 168 Oct 16 12:28 compress_t1.dat.btv

I DO NOT NEED COMPRESSION

If you do not need compression due to the reasons like the time scarcity, you can easily disable the compression.

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treevalue export -t 'tree_demo.t1' -r -o raw_t1.dat.btv
ls -al raw_t1.dat.btv

The dumped binary file raw_t1.dat.btv will not be compressed due to the -r option.

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Exporting tree 't1.btv' to binary file '/tmp/tmp4q2ykbbk/4fbd95995e129b482e0fe5ea376b6f08c7e893f0/docs/source/tutorials/cli_usage/raw_t1.dat.btv' ... OK.
-rw-r--r-- 1 runner docker 145 Oct 16 12:28 raw_t1.dat.btv

Note

You may feel puzzled that why the size of the uncompressed version is even smaller than the compressed version. The reason is easy, when the load and loads functions are called, it will crack the decompression function from the binary data, which means the decompression function is actually stored in binary data.

Because of this principle, when the original data is not big enough, the compressed version may be a little bit bigger than the uncompressed one. But when the original data is huge, the compression will show its advantage, like this source file large_tree_demo.py.

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from treevalue import FastTreeValue

t1 = FastTreeValue({
    'a': 1,
    'b': [2] * 1000,  # huge array
    'x': {
        'c': b'aklsdfj' * 2000,  # huge bytes
        'd': 4
    }
})

When we try to dump the t1 in it, the result will be satisfactory.

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treevalue export -t 'large_tree_demo.t1' -r -o c_o_large_t1.dat.btv
treevalue export -t 'large_tree_demo.t1'    -o c_x_large_t1.dat.btv
ls -al c_*_large_t1.dat.btv

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Exporting tree 't1.btv' to binary file '/tmp/tmp4q2ykbbk/4fbd95995e129b482e0fe5ea376b6f08c7e893f0/docs/source/tutorials/cli_usage/c_o_large_t1.dat.btv' ... OK.
Exporting tree 't1.btv' to binary file '/tmp/tmp4q2ykbbk/4fbd95995e129b482e0fe5ea376b6f08c7e893f0/docs/source/tutorials/cli_usage/c_x_large_t1.dat.btv' ... OK.
-rw-r--r-- 1 runner docker 16154 Oct 16 12:28 c_o_large_t1.dat.btv
-rw-r--r-- 1 runner docker   229 Oct 16 12:28 c_x_large_t1.dat.btv

All the binary file generated in this section (Export Tree with Compression) can:

Generate Graph from Trees

First, let’s see what is in treevalue graph sub command.

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Usage: treevalue graph [OPTIONS]

  Generate graph by trees and graphviz elements.

Options:
  -t, --tree TEXT       Trees to be imported, such as '-t my_tree.t1'.
  -g, --graph TEXT      Graph to be exported, such as '-g my_script.graph1',
                        -t options will be ignored.
  -c, --config TEXT     External configuration when generating graph. Like '-c
                        bgcolor=#ffffff00', will be displayed as graph
                        [bgcolor=#ffffff00] in source code.
  -T, --title TEXT      Title of the graph, will be automatically generated
                        when not given.
  -o, --output FILE     Output file path, multiple output is supported.
  -O, --stdout          Print graphviz source code to stdout, -o option will
                        be ignored.
  -F, --format TEXT     Format of output file.
  -d, --duplicate TEXT  The types need to be duplicated, such as '-d
                        numpy.ndarray', '-d torch.Tensor' and '-d set'.
  -D, --duplicate_all   Duplicate all the nodes of values with same memory id.
  -h, --help            Show this message and exit.

In this sub command, we can draw a tree value object to a graph formatted png, svg or just gv code with graphics function define in module treevalue.tree.tree. Also, the dumped binary trees can be imported and then drawn to graphs.

Note

For further information, take a look at:

  • API Documentation of load.

  • API Documentation of loads.

  • API Documentation of graphics.

Draw One Graph For One Tree

Before drawing the first graph, we prepare the tree_demo.py mentioned in Export Tree with Compression.

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from treevalue import FastTreeValue

t1 = FastTreeValue({'a': 1, 'b': 2, 'x': {'c': 3, 'd': 4}})
t2 = FastTreeValue({'a': 11, 'b': 24, 'x': {'c': 30, 'd': 47}})
t3 = t1 + t2

We can draw the graph of t1 with the following command

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treevalue graph -t 'tree_demo.t1' -o 'only_t1.dat.svg'

The dumped graph only_t1.dat.svg should be like this

../../_images/only_t1.dat.svg

Draw One Graph For Multiple Trees

Actually we can put several trees into one graph, just like the following command

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treevalue graph -t 'tree_demo.*' -o 't1_t2_t3.dat.svg'

The dumped graph t1_t2_t3.dat.svg should contains 3 trees, like this

../../_images/t1_t2_t3.dat.svg

Sometime, the trees will share some common nodes (with the same Tree object id), this relation will also be displayed in graph. In another python script node_share_demo.py

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from treevalue import FastTreeValue

nt1 = FastTreeValue({'a': 1, 'b': 2, 'x': {'c': 3, 'd': 4}})
nt2 = FastTreeValue({'a': 11, 'b': 24, 'x': {'c': 30, 'd': 47}})
nt3 = FastTreeValue({
    'first': nt1,
    'second': nt2,
    'another': nt1.x,
    'sum': nt1 + nt2,
})

The dumped graph shared_nodes.dat.svg should be like

../../_images/shared_nodes.dat.svg

The arrow from nt3 named first is pointed to nt1, the arrow named another is pointed to nt1.x, and so on.

Graph with Configurations

Sometime we need to assign the title of the dumped graph, or you may think that the white background look prominent in the grey page background. So you can dump the graph like this

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treevalue graph \
  -t 'node_share_demo.*' \
  -o 'shared_nodes_with_cfg.dat.svg' \
  -T 'Graph to Show the Shared Nodes' \
  -c 'bgcolor=#ffffff00'

The dumped graph shared_nodes_with_cfg.dat.svg should be like this

../../_images/shared_nodes_with_cfg.dat.svg

We can see the title and the background color is changed because of the -T and -c command. The transparent background looks better than the shared_nodes.dat.svg in the grey page background.

Graph of Different Formats

If you do not need svg format, you can dump it to png format like this

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treevalue graph \
  -t 'node_share_demo.*' \
  -o 'shared_nodes.dat.png' \
  -T 'PNG Formatted Graph' \
  -c 'bgcolor=#ffffff00'

The dumped graph shared_nodes.dat.png should be like this, its format is png.

../../_images/shared_nodes.dat.png

Besides, if the graphviz code (gv format) is just all what you need, you can dump the gv source code with the following command line.

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treevalue graph \
  -t 'node_share_demo.*' \
  -o 'shared_nodes.dat.gv' \
  -T 'PNG Formatted Graph' \
  -c 'bgcolor=#ffffff00'

The dumped source code shared_nodes.dat.gv should be like this

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// PNG Formatted Graph
digraph png_formatted_graph {
	graph [bgcolor="#ffffff00" label="PNG Formatted Graph"]
	node_7f4a0b974df0 [label=nt1 color="#3eb24899" fillcolor="#73ff7e99" fontcolor="#003304ff" fontname="Times-Roman bold" penwidth=3 shape=diamond style=filled]
	node_7f4a0b974f70 [label=nt2 color="#5b3eb299" fillcolor="#9673ff99" fontcolor="#0d0033ff" fontname="Times-Roman bold" penwidth=3 shape=diamond style=filled]
	node_7f4a0b988040 [label=nt3 color="#b26f3e99" fillcolor="#ffad7399" fontcolor="#331500ff" fontname="Times-Roman bold" penwidth=3 shape=diamond style=filled]
	value__node_7f4a0b974df0__a [label=1 color="#3eb24800" fillcolor="#73ff7e99" fontcolor="#003304ff" fontname="Times-Roman" penwidth=1.5 shape=box style=filled]
	node_7f4a0b974df0 -> value__node_7f4a0b974df0__a [label=a arrowhead=dot arrowsize=0.5 color="#1f9929cc" fontcolor="#00730aff" fontname="Times-Roman bold"]
	value__node_7f4a0b974df0__b [label=2 color="#3eb24800" fillcolor="#73ff7e99" fontcolor="#003304ff" fontname="Times-Roman" penwidth=1.5 shape=box style=filled]
	node_7f4a0b974df0 -> value__node_7f4a0b974df0__b [label=b arrowhead=dot arrowsize=0.5 color="#1f9929cc" fontcolor="#00730aff" fontname="Times-Roman bold"]
	node_7f4a0b974e80 [label="nt1.x" color="#3eb24899" fillcolor="#73ff7e99" fontcolor="#003304ff" fontname="Times-Roman bold" penwidth=1.5 shape=ellipse style=filled]
	node_7f4a0b974df0 -> node_7f4a0b974e80 [label=x arrowhead=vee arrowsize=1.0 color="#1f9929cc" fontcolor="#00730aff" fontname="Times-Roman bold"]
	value__node_7f4a0b974f70__a [label=11 color="#5b3eb200" fillcolor="#9673ff99" fontcolor="#0d0033ff" fontname="Times-Roman" penwidth=1.5 shape=box style=filled]
	node_7f4a0b974f70 -> value__node_7f4a0b974f70__a [label=a arrowhead=dot arrowsize=0.5 color="#3d1f99cc" fontcolor="#1d0073ff" fontname="Times-Roman bold"]
	value__node_7f4a0b974f70__b [label=24 color="#5b3eb200" fillcolor="#9673ff99" fontcolor="#0d0033ff" fontname="Times-Roman" penwidth=1.5 shape=box style=filled]
	node_7f4a0b974f70 -> value__node_7f4a0b974f70__b [label=b arrowhead=dot arrowsize=0.5 color="#3d1f99cc" fontcolor="#1d0073ff" fontname="Times-Roman bold"]
	node_7f4a0b974eb0 [label="nt2.x" color="#5b3eb299" fillcolor="#9673ff99" fontcolor="#0d0033ff" fontname="Times-Roman bold" penwidth=1.5 shape=ellipse style=filled]
	node_7f4a0b974f70 -> node_7f4a0b974eb0 [label=x arrowhead=vee arrowsize=1.0 color="#3d1f99cc" fontcolor="#1d0073ff" fontname="Times-Roman bold"]
	node_7f4a0b988040 -> node_7f4a0b974df0 [label=first arrowhead=vee arrowsize=1.0 color="#99521fcc" fontcolor="#733000ff" fontname="Times-Roman bold"]
	node_7f4a0b988040 -> node_7f4a0b974f70 [label=second arrowhead=vee arrowsize=1.0 color="#99521fcc" fontcolor="#733000ff" fontname="Times-Roman bold"]
	node_7f4a0b988040 -> node_7f4a0b974e80 [label=another arrowhead=vee arrowsize=1.0 color="#99521fcc" fontcolor="#733000ff" fontname="Times-Roman bold"]
	node_7f4a0b974fd0 [label="nt3.sum" color="#b26f3e99" fillcolor="#ffad7399" fontcolor="#331500ff" fontname="Times-Roman bold" penwidth=1.5 shape=ellipse style=filled]
	node_7f4a0b988040 -> node_7f4a0b974fd0 [label=sum arrowhead=vee arrowsize=1.0 color="#99521fcc" fontcolor="#733000ff" fontname="Times-Roman bold"]
	value__node_7f4a0b974e80__c [label=3 color="#3eb24800" fillcolor="#73ff7e99" fontcolor="#003304ff" fontname="Times-Roman" penwidth=1.5 shape=box style=filled]
	node_7f4a0b974e80 -> value__node_7f4a0b974e80__c [label=c arrowhead=dot arrowsize=0.5 color="#1f9929cc" fontcolor="#00730aff" fontname="Times-Roman bold"]
	value__node_7f4a0b974e80__d [label=4 color="#3eb24800" fillcolor="#73ff7e99" fontcolor="#003304ff" fontname="Times-Roman" penwidth=1.5 shape=box style=filled]
	node_7f4a0b974e80 -> value__node_7f4a0b974e80__d [label=d arrowhead=dot arrowsize=0.5 color="#1f9929cc" fontcolor="#00730aff" fontname="Times-Roman bold"]
	value__node_7f4a0b974eb0__c [label=30 color="#5b3eb200" fillcolor="#9673ff99" fontcolor="#0d0033ff" fontname="Times-Roman" penwidth=1.5 shape=box style=filled]
	node_7f4a0b974eb0 -> value__node_7f4a0b974eb0__c [label=c arrowhead=dot arrowsize=0.5 color="#3d1f99cc" fontcolor="#1d0073ff" fontname="Times-Roman bold"]
	value__node_7f4a0b974eb0__d [label=47 color="#5b3eb200" fillcolor="#9673ff99" fontcolor="#0d0033ff" fontname="Times-Roman" penwidth=1.5 shape=box style=filled]
	node_7f4a0b974eb0 -> value__node_7f4a0b974eb0__d [label=d arrowhead=dot arrowsize=0.5 color="#3d1f99cc" fontcolor="#1d0073ff" fontname="Times-Roman bold"]
	value__node_7f4a0b974fd0__b [label=26 color="#b26f3e00" fillcolor="#ffad7399" fontcolor="#331500ff" fontname="Times-Roman" penwidth=1.5 shape=box style=filled]
	node_7f4a0b974fd0 -> value__node_7f4a0b974fd0__b [label=b arrowhead=dot arrowsize=0.5 color="#99521fcc" fontcolor="#733000ff" fontname="Times-Roman bold"]
	value__node_7f4a0b974fd0__a [label=12 color="#b26f3e00" fillcolor="#ffad7399" fontcolor="#331500ff" fontname="Times-Roman" penwidth=1.5 shape=box style=filled]
	node_7f4a0b974fd0 -> value__node_7f4a0b974fd0__a [label=a arrowhead=dot arrowsize=0.5 color="#99521fcc" fontcolor="#733000ff" fontname="Times-Roman bold"]
	node_7f4a0b974fa0 [label="nt3.sum.x" color="#b26f3e99" fillcolor="#ffad7399" fontcolor="#331500ff" fontname="Times-Roman bold" penwidth=1.5 shape=ellipse style=filled]
	node_7f4a0b974fd0 -> node_7f4a0b974fa0 [label=x arrowhead=vee arrowsize=1.0 color="#99521fcc" fontcolor="#733000ff" fontname="Times-Roman bold"]
	value__node_7f4a0b974fa0__c [label=33 color="#b26f3e00" fillcolor="#ffad7399" fontcolor="#331500ff" fontname="Times-Roman" penwidth=1.5 shape=box style=filled]
	node_7f4a0b974fa0 -> value__node_7f4a0b974fa0__c [label=c arrowhead=dot arrowsize=0.5 color="#99521fcc" fontcolor="#733000ff" fontname="Times-Roman bold"]
	value__node_7f4a0b974fa0__d [label=51 color="#b26f3e00" fillcolor="#ffad7399" fontcolor="#331500ff" fontname="Times-Roman" penwidth=1.5 shape=box style=filled]
	node_7f4a0b974fa0 -> value__node_7f4a0b974fa0__d [label=d arrowhead=dot arrowsize=0.5 color="#99521fcc" fontcolor="#733000ff" fontname="Times-Roman bold"]
}

Or if you need to put it to the stdout, you can do like this

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treevalue graph \
  -t 'node_share_demo.*' \
  -O \
  -T 'PNG Formatted Graph' \
  -c 'bgcolor=#ffffff00'

The output in stdout should almost the same like the source code file shared_nodes.dat.gv.

Note

When -O option is used, the -o will be ignored.

Reuse the Value Nodes

In some cases, the values in the trees’ nodes is the same object (using the same memory id). So it’s better to put them together in the dumped graph.

For example, in the python code file share_demo.py

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import numpy as np

from treevalue import FastTreeValue

st1 = FastTreeValue({
    'a': 1,
    'b': [1, 2],
    'x': {
        'c': 3,
        'd': np.zeros((3, 2)),
    }
})
st2 = FastTreeValue({
    'np': st1.x.d,
    'ar': st1.b,
    'a': st1.a,
    'arx': [1, 2],
})

You can run the following command

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treevalue graph \
  -t 'share_demo.*' \
  -o 'no_shared_values.dat.svg' \
  -T 'No Shared Values' \
  -c 'bgcolor=#ffffff00'

The dumped graph no_shared_values.dat.svg should be like this, all the value nodes are separated in the default options.

../../_images/no_shared_values.dat.svg

We can solve this problem by adding -D option in the command, which means duplicate all the value nodes.

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treevalue graph \
  -t 'share_demo.*' \
  -o 'shared_all_values.dat.svg' \
  -T 'Shared All Values' \
  -c 'bgcolor=#ffffff00' \
  -D

In the dumped graph shared_all_values.dat.svg, all the value nodes with the same id are put together.

../../_images/shared_all_values.dat.svg

Note

When -D is used, all the values in leaf node with the same id will share exactly one leaf node in the dumped graph.

But actually in python, most of the basic data types are immutable, which means all the 1 in python code are actually the same object, for their ids are the same. So in the image shared_all_values.dat.svg, even the leaf node 1 are shared.

This phenomenon may reduce the intuitiveness of the image in many cases. Please notice this when you are deciding to use -D option.

Because of the problem mentioned in the note above, in most of the cases, it’s a better idea to use -d option to assign which types should be duplicated and which should not. Like the example below.

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treevalue graph \
  -t 'share_demo.*' \
  -o 'shared_values.dat.svg' \
  -T 'Shared Values' \
  -c 'bgcolor=#ffffff00' \
  -d list -d numpy.ndarray

The dumped graph shared_values.dat.svg should be like this, the 1 is not duplicated any more, but list and np.ndarray will be duplicated.

../../_images/shared_values.dat.svg