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rapidsai / cudf

cuDF - GPU DataFrame Library
https://docs.rapids.ai/api/cudf/stable/
Apache License 2.0
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[BUG] `mangle_dupe_cols` in `CSV reader` requires a change in behavior #10618

Closed galipremsagar closed 2 years ago

galipremsagar commented 2 years ago

Describe the bug Starting pandas 1.4.0, there is a change in behavior of mangle_dupe_cols in cudf.read_csv. The change in behavior is explained well here: https://pandas.pydata.org/docs/whatsnew/v1.4.0.html#mangle-dupe-cols-in-read-csv-no-longer-renames-unique-columns-conflicting-with-target-names

Steps/Code to reproduce bug

>>> import pandas as pd
>>> import cudf
>>> from io import StringIO
>>> buffer = """A,A,A.1,A,A.2,A,A.4,A,A
...                     1,2,3.1,4,a.2,a,a.4,a,a
...                     2,4,6.1,8,b.2,b,b.4,b,b"""
>>> pdf = pd.read_csv(StringIO(buffer))
>>> gdf = cudf.read_csv(StringIO(buffer))
>>> gdf
   A  A.1  A.1.1  A.2 A.2.1 A.3  A.4 A.4.1 A.5
0  1    2    3.1    4   a.2   a  a.4     a   a
1  2    4    6.1    8   b.2   b  b.4     b   b
>>> pdf
   A  A.3  A.1  A.5  A.2 A.6  A.4 A.7 A.8
0  1    2  3.1    4  a.2   a  a.4   a   a
1  2    4  6.1    8  b.2   b  b.4   b   b

Expected behavior


>>> gdf
   A  A.3  A.1  A.5  A.2 A.6  A.4 A.7 A.8
0  1    2  3.1    4  a.2   a  a.4   a   a
1  2    4  6.1    8  b.2   b  b.4   b   b

Environment overview (please complete the following information)

Environment details Please run and paste the output of the cudf/print_env.sh script here, to gather any other relevant environment details

Click here to see environment details

     **git***
     commit bb3a6b995f20ef419705cf67821804441e485b9c (HEAD -> pandas_1.4x)
     Merge: e6098bf963 fb03c8bc91
     Author: galipremsagar 
     Date:   Thu Apr 7 07:39:23 2022 -0700

     Merge remote-tracking branch 'upstream/branch-22.06' into pandas_1.4x
     **git submodules***

     ***OS Information***
     DISTRIB_ID=Ubuntu
     DISTRIB_RELEASE=18.04
     DISTRIB_CODENAME=bionic
     DISTRIB_DESCRIPTION="Ubuntu 18.04.4 LTS"
     NAME="Ubuntu"
     VERSION="18.04.4 LTS (Bionic Beaver)"
     ID=ubuntu
     ID_LIKE=debian
     PRETTY_NAME="Ubuntu 18.04.4 LTS"
     VERSION_ID="18.04"
     HOME_URL="https://www.ubuntu.com/"
     SUPPORT_URL="https://help.ubuntu.com/"
     BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
     PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
     VERSION_CODENAME=bionic
     UBUNTU_CODENAME=bionic
     Linux dt07 4.15.0-76-generic #86-Ubuntu SMP Fri Jan 17 17:24:28 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

     ***GPU Information***
     Thu Apr  7 08:36:31 2022
     +-----------------------------------------------------------------------------+
     | NVIDIA-SMI 495.29.05    Driver Version: 495.29.05    CUDA Version: 11.5     |
     |-------------------------------+----------------------+----------------------+
     | GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
     | Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
     |                               |                      |               MIG M. |
     |===============================+======================+======================|
     |   0  Tesla T4            On   | 00000000:3B:00.0 Off |                    0 |
     | N/A   44C    P8    10W /  70W |      0MiB / 15109MiB |      0%      Default |
     |                               |                      |                  N/A |
     +-------------------------------+----------------------+----------------------+
     |   1  Tesla T4            On   | 00000000:5E:00.0 Off |                    0 |
     | N/A   38C    P8     9W /  70W |      0MiB / 15109MiB |      0%      Default |
     |                               |                      |                  N/A |
     +-------------------------------+----------------------+----------------------+
     |   2  Tesla T4            On   | 00000000:AF:00.0 Off |                    0 |
     | N/A   33C    P8     9W /  70W |      0MiB / 15109MiB |      0%      Default |
     |                               |                      |                  N/A |
     +-------------------------------+----------------------+----------------------+
     |   3  Tesla T4            On   | 00000000:D8:00.0 Off |                    0 |
     | N/A   32C    P8     9W /  70W |      0MiB / 15109MiB |      0%      Default |
     |                               |                      |                  N/A |
     +-------------------------------+----------------------+----------------------+

     +-----------------------------------------------------------------------------+
     | Processes:                                                                  |
     |  GPU   GI   CI        PID   Type   Process name                  GPU Memory |
     |        ID   ID                                                   Usage      |
     |=============================================================================|
     |  No running processes found                                                 |
     +-----------------------------------------------------------------------------+

     ***CPU***
     Architecture:        x86_64
     CPU op-mode(s):      32-bit, 64-bit
     Byte Order:          Little Endian
     CPU(s):              64
     On-line CPU(s) list: 0-63
     Thread(s) per core:  2
     Core(s) per socket:  16
     Socket(s):           2
     NUMA node(s):        2
     Vendor ID:           GenuineIntel
     CPU family:          6
     Model:               85
     Model name:          Intel(R) Xeon(R) Gold 6130 CPU @ 2.10GHz
     Stepping:            4
     CPU MHz:             1766.199
     BogoMIPS:            4200.00
     Virtualization:      VT-x
     L1d cache:           32K
     L1i cache:           32K
     L2 cache:            1024K
     L3 cache:            22528K
     NUMA node0 CPU(s):   0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62
     NUMA node1 CPU(s):   1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59,61,63
     Flags:               fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault epb cat_l3 cdp_l3 invpcid_single pti intel_ppin ssbd mba ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm cqm mpx rdt_a avx512f avx512dq rdseed adx smap clflushopt clwb intel_pt avx512cd avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local dtherm ida arat pln pts pku ospke md_clear flush_l1d

     ***CMake***
     /nvme/0/pgali/envs/cudfdev/bin/cmake
     cmake version 3.22.3

     CMake suite maintained and supported by Kitware (kitware.com/cmake).

     ***g++***
     /usr/bin/g++
     g++ (Ubuntu 9.4.0-1ubuntu1~18.04) 9.4.0
     Copyright (C) 2019 Free Software Foundation, Inc.
     This is free software; see the source for copying conditions.  There is NO
     warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

     ***nvcc***
     /usr/local/cuda/bin/nvcc
     nvcc: NVIDIA (R) Cuda compiler driver
     Copyright (c) 2005-2021 NVIDIA Corporation
     Built on Mon_Sep_13_19:13:29_PDT_2021
     Cuda compilation tools, release 11.5, V11.5.50
     Build cuda_11.5.r11.5/compiler.30411180_0

     ***Python***
     /nvme/0/pgali/envs/cudfdev/bin/python
     Python 3.8.13

     ***Environment Variables***
     PATH                            : /nvme/0/pgali/envs/cudfdev/bin:~/anaconda3/bin:/nvme/0/pgali/envs/cudfdev/bin:~/anaconda3/bin:/nvme/0/pgali/envs/cudfdev/bin:/home/nfs/pgali/anaconda3/condabin:/home/nfs/pgali/.vscode-server/bin/e18005f0f1b33c29e81d732535d8c0e47cafb0b5/bin/remote-cli:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/usr/local/cuda/bin:/usr/local/cuda/bin
     LD_LIBRARY_PATH                 : /usr/local/cuda/lib64:/usr/local/cuda/lib64::/usr/local/cuda/lib64:/usr/local/cuda/extras/CUPTI/lib64:/usr/local/cuda/lib64:/usr/local/cuda/extras/CUPTI/lib64
     NUMBAPRO_NVVM                   :
     NUMBAPRO_LIBDEVICE              :
     CONDA_PREFIX                    : /nvme/0/pgali/envs/cudfdev
     PYTHON_PATH                     :

     ***conda packages***
     /home/nfs/pgali/anaconda3/condabin/conda
     # packages in environment at /nvme/0/pgali/envs/cudfdev:
     #
     # Name                    Version                   Build  Channel
     _libgcc_mutex             0.1                 conda_forge    conda-forge
     _openmp_mutex             4.5                      1_llvm    conda-forge
     abseil-cpp                20210324.2           h9c3ff4c_0    conda-forge
     alabaster                 0.7.12                     py_0    conda-forge
     argon2-cffi               21.3.0             pyhd8ed1ab_0    conda-forge
     argon2-cffi-bindings      21.2.0           py38h497a2fe_1    conda-forge
     arrow-cpp                 7.0.0           py38hf79e478_4_cuda    conda-forge
     arrow-cpp-proc            3.0.0                      cuda    conda-forge
     asttokens                 2.0.5              pyhd8ed1ab_0    conda-forge
     attrs                     21.4.0             pyhd8ed1ab_0    conda-forge
     aws-c-cal                 0.5.11               h95a6274_0    conda-forge
     aws-c-common              0.6.2                h7f98852_0    conda-forge
     aws-c-event-stream        0.2.7               h3541f99_13    conda-forge
     aws-c-io                  0.10.5               hfb6a706_0    conda-forge
     aws-checksums             0.1.11               ha31a3da_7    conda-forge
     aws-sdk-cpp               1.8.186              hb4091e7_3    conda-forge
     babel                     2.9.1              pyh44b312d_0    conda-forge
     backcall                  0.2.0              pyh9f0ad1d_0    conda-forge
     backports                 1.0                        py_2    conda-forge
     backports-zoneinfo        0.2.1                    pypi_0    pypi
     backports.functools_lru_cache 1.6.4              pyhd8ed1ab_0    conda-forge
     beautifulsoup4            4.10.0             pyha770c72_0    conda-forge
     binutils_impl_linux-64    2.36.1               h193b22a_2    conda-forge
     black                     22.3.0             pyhd8ed1ab_0    conda-forge
     bleach                    4.1.0              pyhd8ed1ab_0    conda-forge
     bokeh                     2.4.2            py38h578d9bd_0    conda-forge
     brotlipy                  0.7.0           py38h0a891b7_1004    conda-forge
     bzip2                     1.0.8                h7f98852_4    conda-forge
     c-ares                    1.18.1               h7f98852_0    conda-forge
     ca-certificates           2021.10.8            ha878542_0    conda-forge
     cachetools                5.0.0              pyhd8ed1ab_0    conda-forge
     certifi                   2021.10.8        py38h578d9bd_2    conda-forge
     cffi                      1.15.0           py38h3931269_0    conda-forge
     cfgv                      3.3.1              pyhd8ed1ab_0    conda-forge
     charset-normalizer        2.0.12             pyhd8ed1ab_0    conda-forge
     clang                     11.1.0               ha770c72_1    conda-forge
     clang-11                  11.1.0          default_ha53f305_1    conda-forge
     clang-tools               11.1.0          default_ha53f305_1    conda-forge
     clangxx                   11.1.0          default_ha53f305_1    conda-forge
     click                     8.1.2            py38h578d9bd_0    conda-forge
     cloudpickle               2.0.0              pyhd8ed1ab_0    conda-forge
     cmake                     3.22.3               h5432695_0    conda-forge
     cmake_setuptools          0.1.3                      py_0    rapidsai
     colorama                  0.4.4              pyh9f0ad1d_0    conda-forge
     commonmark                0.9.1                      py_0    conda-forge
     cryptography              36.0.2           py38h2b5fc30_1    conda-forge
     cuda-python               11.6.1           py38h3fd9d12_0    nvidia
     cudatoolkit               11.5.1               hcf5317a_9    nvidia
     cudf                      22.6.0a0+117.gbb3a6b995f.dirty          pypi_0    pypi
     cupy                      10.3.0           py38h405e1b6_0    conda-forge
     cyrus-sasl                2.1.27               h230043b_5    conda-forge
     cython                    0.29.28          py38hfa26641_2    conda-forge
     cytoolz                   0.11.2           py38h0a891b7_2    conda-forge
     dask                      2022.3.0           pyhd8ed1ab_1    conda-forge
     dask-core                 2022.3.0           pyhd8ed1ab_0    conda-forge
     dask-cudf                 22.6.0a0+117.gbb3a6b995f          pypi_0    pypi
     dataclasses               0.8                pyhc8e2a94_3    conda-forge
     debugpy                   1.5.1            py38h709712a_0    conda-forge
     decorator                 5.1.1              pyhd8ed1ab_0    conda-forge
     defusedxml                0.7.1              pyhd8ed1ab_0    conda-forge
     distlib                   0.3.4              pyhd8ed1ab_0    conda-forge
     distributed               2022.3.0           pyhd8ed1ab_0    conda-forge
     dlpack                    0.5                  h9c3ff4c_0    conda-forge
     docutils                  0.17.1           py38h578d9bd_1    conda-forge
     double-conversion         3.2.0                h9c3ff4c_0    conda-forge
     entrypoints               0.4                pyhd8ed1ab_0    conda-forge
     execnet                   1.9.0              pyhd8ed1ab_0    conda-forge
     executing                 0.8.3              pyhd8ed1ab_0    conda-forge
     expat                     2.4.8                h27087fc_0    conda-forge
     fastavro                  1.4.10           py38h0a891b7_0    conda-forge
     fastrlock                 0.8              py38hfa26641_1    conda-forge
     filelock                  3.6.0              pyhd8ed1ab_0    conda-forge
     flake8                    3.8.3                      py_1    conda-forge
     flit-core                 3.7.1              pyhd8ed1ab_0    conda-forge
     freetype                  2.10.4               h0708190_1    conda-forge
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     future                    0.18.2           py38h578d9bd_5    conda-forge
     gcc_impl_linux-64         11.2.0              h82a94d6_14    conda-forge
     gettext                   0.19.8.1          h73d1719_1008    conda-forge
     gflags                    2.2.2             he1b5a44_1004    conda-forge
     giflib                    5.2.1                h36c2ea0_2    conda-forge
     glog                      0.6.0                h6f12383_0    conda-forge
     gmp                       6.2.1                h58526e2_0    conda-forge
     grpc-cpp                  1.43.2               h9e046d8_1    conda-forge
     heapdict                  1.0.1                      py_0    conda-forge
     huggingface_hub           0.5.1              pyhd8ed1ab_0    conda-forge
     hypothesis                6.41.0             pyhd8ed1ab_0    conda-forge
     identify                  2.4.12             pyhd8ed1ab_0    conda-forge
     idna                      3.3                pyhd8ed1ab_0    conda-forge
     imagesize                 1.3.0              pyhd8ed1ab_0    conda-forge
     importlib-metadata        4.11.3           py38h578d9bd_1    conda-forge
     importlib_metadata        4.11.3               hd8ed1ab_1    conda-forge
     importlib_resources       5.6.0              pyhd8ed1ab_0    conda-forge
     iniconfig                 1.1.1              pyh9f0ad1d_0    conda-forge
     ipykernel                 6.12.1           py38h7f3c49e_0    conda-forge
     ipython                   8.2.0            py38h578d9bd_0    conda-forge
     ipython_genutils          0.2.0                      py_1    conda-forge
     isort                     5.6.4                      py_0    conda-forge
     jbig                      2.1               h7f98852_2003    conda-forge
     jedi                      0.18.1           py38h578d9bd_1    conda-forge
     jinja2                    3.0.3              pyhd8ed1ab_0    conda-forge
     joblib                    1.1.0              pyhd8ed1ab_0    conda-forge
     jpeg                      9e                   h7f98852_0    conda-forge
     jsonschema                4.4.0              pyhd8ed1ab_0    conda-forge
     jupyter_client            7.2.2              pyhd8ed1ab_0    conda-forge
     jupyter_core              4.9.2            py38h578d9bd_0    conda-forge
     jupyterlab_pygments       0.1.2              pyh9f0ad1d_0    conda-forge
     kernel-headers_linux-64   2.6.32              he073ed8_15    conda-forge
     keyutils                  1.6.1                h166bdaf_0    conda-forge
     krb5                      1.19.3               h3790be6_0    conda-forge
     lcms2                     2.12                 hddcbb42_0    conda-forge
     ld_impl_linux-64          2.36.1               hea4e1c9_2    conda-forge
     lerc                      3.0                  h9c3ff4c_0    conda-forge
     libblas                   3.9.0            14_linux64_mkl    conda-forge
     libbrotlicommon           1.0.9                h166bdaf_7    conda-forge
     libbrotlidec              1.0.9                h166bdaf_7    conda-forge
     libbrotlienc              1.0.9                h166bdaf_7    conda-forge
     libcblas                  3.9.0            14_linux64_mkl    conda-forge
     libclang-cpp11.1          11.1.0          default_ha53f305_1    conda-forge
     libcrc32c                 1.1.2                h9c3ff4c_0    conda-forge
     libcurl                   7.82.0               h7bff187_0    conda-forge
     libdeflate                1.10                 h7f98852_0    conda-forge
     libedit                   3.1.20191231         he28a2e2_2    conda-forge
     libev                     4.33                 h516909a_1    conda-forge
     libevent                  2.1.10               h9b69904_4    conda-forge
     libffi                    3.4.2                h7f98852_5    conda-forge
     libgcc-devel_linux-64     11.2.0              h0952999_14    conda-forge
     libgcc-ng                 11.2.0              h1d223b6_14    conda-forge
     libgcrypt                 1.10.0               h7f98852_0    conda-forge
     libgomp                   11.2.0              h1d223b6_14    conda-forge
     libgoogle-cloud           1.35.0               h6945097_2    conda-forge
     libgpg-error              1.44                 h9eb791d_0    conda-forge
     libgsasl                  1.10.0               h5b4c23d_0    conda-forge
     liblapack                 3.9.0            14_linux64_mkl    conda-forge
     libllvm11                 11.1.0               hf817b99_3    conda-forge
     libnghttp2                1.47.0               h727a467_0    conda-forge
     libnsl                    2.0.0                h7f98852_0    conda-forge
     libntlm                   1.4               h7f98852_1002    conda-forge
     libpng                    1.6.37               h21135ba_2    conda-forge
     libprotobuf               3.19.4               h780b84a_0    conda-forge
     librdkafka                1.7.0                hc49e61c_1    conda-forge
     librmm                    22.06.00a220407 cuda11_g921d286_22    rapidsai-nightly
     libsanitizer              11.2.0              he4da1e4_14    conda-forge
     libsodium                 1.0.18               h36c2ea0_1    conda-forge
     libssh2                   1.10.0               ha56f1ee_2    conda-forge
     libstdcxx-ng              11.2.0              he4da1e4_14    conda-forge
     libthrift                 0.16.0               h519c5ea_1    conda-forge
     libtiff                   4.3.0                h542a066_3    conda-forge
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     libzlib                   1.2.11            h166bdaf_1014    conda-forge
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     llvmlite                  0.38.0           py38h38d86a4_1    conda-forge
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     lz4-c                     1.9.3                h9c3ff4c_1    conda-forge
     markdown                  3.3.6              pyhd8ed1ab_0    conda-forge
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     matplotlib-inline         0.1.3              pyhd8ed1ab_0    conda-forge
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     nbclient                  0.5.13             pyhd8ed1ab_0    conda-forge
     nbconvert                 6.4.5              pyhd8ed1ab_2    conda-forge
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     notebook                  6.4.10             pyha770c72_0    conda-forge
     numba                     0.55.1           py38h4bf6c61_0    conda-forge
     numpy                     1.21.5           py38h87f13fb_0    conda-forge
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     nvtx                      0.2.3            py38h497a2fe_1    conda-forge
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     openssl                   1.1.1n               h166bdaf_0    conda-forge
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     packaging                 21.3               pyhd8ed1ab_0    conda-forge
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     platformdirs              2.5.1              pyhd8ed1ab_0    conda-forge
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     pre-commit                2.18.1           py38h578d9bd_0    conda-forge
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     zstd                      1.5.2                ha95c52a_0    conda-forge

Additional context

We have a test coverage for this, it is disable currently: https://github.com/rapidsai/cudf/blob/fb03c8bc91e6a9de0605ff727da45e183f0fd5b5/python/cudf/cudf/tests/test_csv.py#L1278-L1286

karthikeyann commented 2 years ago

Our conda environment mentions - pandas>=1.0,<1.4.0dev0 are we moving to/beyond pandas 1.4.0 in cudf 22.06?

karthikeyann commented 2 years ago

Relevant pandas commit https://github.com/pandas-dev/pandas/commit/7f06a8a577d85617d08570ef328851161a4ddf35

galipremsagar commented 2 years ago

Our conda environment mentions - pandas>=1.0,<1.4.0dev0 are we moving to/beyond pandas 1.4.0 in cudf 22.06?

yes: https://github.com/rapidsai/cudf/pull/10584