보통 시그모이드 함수는 종속변수가 2개로 분리될 때 사용된다고 배웠습니다. 그렇다면 종속변수가 3개나 그 이상으로 분리 된다고 했을 때는 시그모이드함수 말고 다른 걸 사용하면 되는건가요?  실제 사례에 적용을 하고 싶은데 어떤 자료를 공부하면 될까요? 

@Component도 @Scope("prototype")도 사용하지 않는 일반 객체를 싱글톤 빈에서 참조한다면매번 다른 인스턴스를 사용할 수 있나요?

35강은 왜 없나요??

 Uncaught ReferenceError: Vue is not defined 오류가 나는데 어떻게 해야 하나요

문자를 잘못입력해서 중간에 문자를 삽입하려고 하는데, 겹쳐쓰기 모드(?)처럼 뭐가 잘못 오류나서 문자 중간에 다른 문자를 추가하면 그 뒤 문자가 삭제가 되는데 어떻게 해결하나요ㅠㅠ

Windows 와 OSX 에서는 hyper-v 위에서 docker 컨테이너가 실행되어 성능상의 패널티가 있다고 하셨는데 https://docs.microsoft.com/ko-kr/virtualization/windowscontainers/manage-containers/hyperv-container 위 링크에서 보면 process 격리 모드라는 것을 제공한다고 하고 이 경우에는 패널티가 없을 것 같은데 아닌가요?

안녕하세요 dlib 설치하는 데 문제가 생겨서요. cmake까진 잘 설치가 됐는데 dlib이 자꾸 오류나서 다른 분 케이스 찾아보고 그대로 conda install -c conda-forge dlib도 해봤는데 설치가 안 되네요... Collecting package metadata (current_repodata.json): done Solving environment: failed with initial frozen solve. Retrying with flexible solve. Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source. Collecting package metadata (repodata.json): done Solving environment: failed with initial frozen solve. Retrying with flexible solve. Solving environment: / Found conflicts! Looking for incompatible packages. This can take several minutes.  Press CTRL-C to abort. Examining xlwt:   3%|█▋                                                              | 8/301 [01:10<1:05:02, 13.32s/it]/Examining libtiff:   5%|███                                                           | 15/301 [01:23<15:25,  3.24s/it]/Examining future:  15%|█████████▏                                                     | 44/301 [04:13<07:00,  1.64s/it]|Examining qt:  18%|████████████                                                       | 54/301 [05:34<27:19,  6.64s/it]/Examining pathtools:  19%|███████████▏                                                | 56/301 [05:48<29:39,  7.26s/it]/Examining snappy:  20%|████████████▎                                                  | 59/301 [05:50<21:11,  5.26s/it]/Examining _ipyw_jlab_nb_ext_conf:  21%|█████████▉                                     | 64/301 [06:02<18:46,  4.75s/it]/Examining pandas:  23%|██████████████▍                                                | 69/301 [06:18<12:21,  3.19s/it]|Examining xlsxwriter:  25%|██████████████▉                                            | 76/301 [06:58<18:25,  4.91s/it]|Examining babel:  26%|████████████████▎                                               | 77/301 [06:59<14:26,  3.87s/it]|Examining backports:  26%|███████████████▋                                            | 79/301 [07:08<07:48,  2.11s/it]-Examining certifi:  28%|█████████████████                                             | 83/301 [07:09<05:20,  1.47s/it]\Examining astroid:  29%|██████████████████▏                                           | 88/301 [07:23<11:39,  3.28s/it]\Examining jpeg:  34%|█████████████████████▍                                          | 101/301 [07:34<02:28,  1.35it/s]/Examining prometheus_client:  36%|██████████████████▏                                | 107/301 [07:39<02:14,  1.45it/s]/Examining sphinxcontrib-jsmath:  41%|███████████████████▍                            | 122/301 [08:12<13:05,  4.39s/it]/Examining m2w64-gcc-libs-core:  43%|█████████████████████▏                           | 130/301 [08:17<03:31,  1.23s/it]/Examining sphinxcontrib-serializinghtml:  44%|█████████████████                      | 132/301 [08:18<02:35,  1.09it/s]|Examining icu:  44%|████████████████████████████▋                                    | 133/301 [08:18<02:00,  1.40it/s]\Examining imageio:  46%|███████████████████████████▉                                 | 138/301 [08:25<02:50,  1.04s/it]|Examining pylint:  47%|█████████████████████████████                                 | 141/301 [08:47<09:57,  3.73s/it]|Examining setuptools:  47%|███████████████████████████▏                              | 141/301 [08:52<09:57,  3.73s/it]/Examining openpyxl:  48%|████████████████████████████▌                               | 143/301 [09:17<16:19,  6.20s/it]\Examining anaconda-project:  50%|█████████████████████████▋                          | 149/301 [09:50<14:32,  5.74s/it]-Examining qtpy:  57%|████████████████████████████████████▌                           | 172/301 [10:34<01:34,  1.36it/s]-Examining nose:  61%|███████████████████████████████████████▎                        | 185/301 [10:53<06:29,  3.36s/it]\Examining libpng:  65%|████████████████████████████████████████▎                     | 196/301 [11:54<07:58,  4.55s/it]|Examining bcrypt:  68%|██████████████████████████████████████████▏                   | 205/301 [13:44<15:36,  9.75s/it]/Examining notebook:  72%|███████████████████████████████████████████▍                | 218/301 [14:11<07:54,  5.72s/it]/Examining pyyaml:  75%|██████████████████████████████████████████████▎               | 225/301 [15:17<14:00, 11.06s/it]/Examining pyopenssl:  75%|████████████████████████████████████████████▍              | 227/301 [15:18<06:56,  5.63s/it]-Examining pycurl:  76%|███████████████████████████████████████████████▏              | 229/301 [15:21<04:07,  3.44s/it]/Examining conda-package-handling:  77%|███████████████████████████████████▌          | 233/301 [15:23<01:30,  1.33s/it]|Examining contextlib2:  78%|████████████████████████████████████████████▎            | 234/301 [15:26<01:29,  1.33s/it]\Examining msys2-conda-epoch:  81%|█████████████████████████████████████████▎         | 244/301 [15:38<01:00,  1.06s/it]|Examining chardet:  84%|███████████████████████████████████████████████████▎         | 253/301 [15:48<00:54,  1.14s/it]|Examining console_shortcut:  92%|███████████████████████████████████████████████▊    | 277/301 [16:31<01:40,  4.18s/it]-Examining pyqt:  98%|██████████████████████████████████████████████████████████████▋ | 295/301 [18:52<01:12, 12.05s/it]|Examining partd: 100%|███████████████████████████████████████████████████████████████| 301/301 [18:54<00:00,  2.26s/it]/Examining conflict for sphinx jupyterlab numpydoc jupyterlab_server jupyter widgetsnbextension dask nbconvert conda-bui\Examining conflict for astroid anaconda lazy-object-proxy pylint:  14%|█▊           | 42/301 [19:26<1:20:27, 18.64s/it]\Examining conflict for bkcharts matplotlib astropy seaborn mkl-service numpy numexpr dask hdf5 h5py imageio pytables bo\Examining conflict for jupyter_console pytest-astropy-header pytest-remotedata prompt_toolkit astropy pytest-arraydiff -Examining conflict for isort pylint python-language-server anaconda spyder:  29%|█▍   | 87/301 [33:28<42:28, 11.91s/it]|Examining conflict for pyopenssl cryptography paramiko urllib3:  40%|██████▍         | 120/301 [42:02<44:25, 14.72s/it]-Examining conflict for blosc zstd libtiff libarchive:  44%|███████████▎              | 131/301 [44:23<48:49, 17.23s/it]\Examining conflict for python-libarchive-c conda-build anaconda conda-verify conda-package-handling libarchive conda:  /Examining conflict for python-libarchive-c pytables conda-build anaconda conda-package-handling libarchive lzo:  54%|▌|/Examining conflict for matplotlib-base matplotlib seaborn anaconda bokeh nltk scikit-image kiwisolver:  56%|▌| 169/301 /Examining conflict for spyder watchdog argh anaconda:  58%|███████████████           | 175/301 [53:51<39:38, 18.88s/it]/Examining conflict for spyder diff-match-patch anaconda:  62%|██████████████▏        | 186/301 [57:04<37:14, 19.43s/it]\Examining conflict for unicodecsv anaconda:  73%|████████████████████████▋         | 219/301 [1:06:56<25:46, 18.86s/it]/Examining conflict for jupyterlab _ipyw_jlab_nb_ext_conf jupyterlab_server notebook anaconda ipywidgets jupyter widgets\Examining conflict for spyder spyder-kernels anaconda:  74%|█████████████████      | 224/301 [1:08:42<27:15, 21.24s/it]/Examining conflict for sympy anaconda:  77%|██████████████████████████████▏        | 233/301 [1:11:20<20:56, 18.48s/it]-Examining conflict for dask distributed anaconda bokeh scikit-image:  78%|███████  | 236/301 [1:12:04<15:14, 14.08s/it]\Examining conflict for tblib distributed anaconda dask:  79%|█████████████████▍    | 238/301 [1:13:16<20:24, 19.43s/it]\Examining conflict for pycurl anaconda:  82%|███████████████████████████████       | 246/301 [1:15:56<18:21, 20.04s/it]\Examining conflict for jupyter_console jupyter_client qtconsole jupyterlab ipykernel jupyterlab_server notebook anacond/Examining conflict for _ipyw_jlab_nb_ext_conf anaconda jupyterlab:  89%|█████████▊ | 269/301 [1:23:33<11:16, 21.16s/it]/Examining conflict for jupyter_console jupyter_client qtconsole jupyterlab ipykernel jupyterlab_server notebook anacond|Examining conflict for bitarray anaconda:  92%|█████████████████████████████████   | 276/301 [1:25:29<08:00, 19.24s/it]/Examining conflict for anaconda-project anaconda anaconda-navigator anaconda-client:  93%|▉| 279/301 [1:27:01<08:05, 22-Examining conflict for seaborn anaconda statsmodels:  94%|███████████████████████▌ | 284/301 [1:28:23<05:56, 20.99s/it]\Examining conflict for spyder pexpect anaconda:  97%|█████████████████████████████ | 292/301 [1:30:40<03:03, 20.40s/it]\Examining conflict for blosc pytables anaconda: 100%|██████████████████████████████| 301/301 [1:34:04<00:00, 21.23s/it]-Examining conflict for tornado jupyter_client matplotlib-base matplotlib jupyterlab ipykernel terminado distributed noteExamining conflict for tornado jupyter_client matplotlib-base matplotlib jupyterlab ipykernel terminado distributed noteExamining conflict for _ipyw_jlab_nb_ext_conf jupyterlab: : 323it [1:36:12,  1.27s/it]                                  failed                                                                                              \ UnsatisfiableError: The following specifications were found to be incompatible with the existing python installation in your environment: Specifications:   - anaconda-navigator -> python[version='2.7.*|3.5.*|3.6.*|3.4.*']   - anaconda-project -> python[version='3.4.*|>=3.8,<3.9.0a0']   - anaconda==2020.02 -> python[version='3.6.10|3.8.1|3.7.6',build='h60c2a47_2|h9f7ef89_0|h5fd99cc_8_cpython']   - autopep8 -> python[version='>=3.8,<3.9.0a0']   - backports.functools_lru_cache -> python[version='2.7.*|3.5.*|3.6.*|3.4.*|>=2.7,<2.8.0a0']   - bcrypt -> python[version='2.7.*|3.5.*|3.6.*|3.6.9|3.4.*|3.7.*|3.8.*',build='2_73_pypy|1_73_pypy|0_73_pypy']   - bkcharts -> python=3.4   - bleach -> python[version='>=3.8,<3.9.0a0']   - cffi -> python[version='2.7.*|3.5.*|3.6.*|3.6.9|3.6.9|>=2.7,<2.8.0a0|>=3.8,<3.9.0a0|>=3.7,<3.8.0a0|>=3.6,<3.7.0a0|>=3.5,<3.6.0a0|3.4.*',build='2_73_pypy|1_73_pypy|0_73_pypy']   - conda-env -> python[version='2.7.*|3.4.*|3.5.*']   - cryptography -> python[version='3.4.*|3.6.9|<=3.3',build='2_73_pypy|1_73_pypy|0_73_pypy']   - curl -> python=2.7   - diff-match-patch -> python[version='2.7.*|3.4.*|3.5.*|3.6.*']   - dlib -> python[version='>=2.7,<2.8.0a0|>=3.5,<3.6.0a0']   - gevent -> python[version='3.6.9|3.7.*|3.8.*',build='2_73_pypy|1_73_pypy|0_73_pypy']   - h5py -> python[version='<3']   - html5lib -> python[version='3.4.*|>=3.8,<3.9.0a0']   - intervaltree -> python[version='2.7.*|3.5.*|3.6.*']   - jinja2 -> python[version='>=3.8,<3.9.0a0']   - joblib -> python[version='>=3.8,<3.9.0a0']   - jupyterlab -> python[version='>=3.8,<3.9.0a0']   - jupyterlab_server -> python[version='2.7.*|3.5.*|3.6.*|>=2.7,<2.8.0a0|>=3.5,<3.6.0a0|>=3.8,<3.9.0a0|3.4.*']   - krb5 -> python=2.7   - libcurl -> python=2.7   - matplotlib -> python[version='2.7.*|3.6.*|<3']   - mkl-service -> python[version='2.7.*|3.5.*|3.6.*|3.4.*']   - more-itertools -> python=3.4   - navigator-updater -> python[version='2.7.*|3.5.*|3.6.*|>=3.8,<3.9.0a0|3.4.*']   - networkx -> python[version='>=3.8,<3.9.0a0']   - numba -> python=3.4   - openpyxl -> python[version='>=3.8,<3.9.0a0']   - packaging -> python[version='>=3.8,<3.9.0a0']   - partd -> python[version='>=3.8,<3.9.0a0']   - path -> python[version='>=2.7,<2.8.0a0']   - path.py -> python[version='>=3.8,<3.9.0a0']   - pathtools -> python[version='2.7.*|3.4.*|3.5.*|3.6.*']   - prometheus_client -> python[version='>=3.8,<3.9.0a0']   - pygments -> python[version='>=3.8,<3.9.0a0']   - pynacl -> python[version='2.7.*|3.5.*|3.6.*|3.6.9|3.4.*',build='2_73_pypy|1_73_pypy|0_73_pypy']   - pytest-arraydiff -> python[version='2.7.*|3.5.*|3.6.*|3.4.*']   - pytest-doctestplus -> python[version='2.7.*|3.5.*|3.6.*|>=3.8,<3.9.0a0|3.4.*']   - pytest-openfiles -> python[version='2.7.*|3.5.*|3.6.*|>=3.8,<3.9.0a0|3.4.*']   - pytest-remotedata -> python[version='2.7.*|3.5.*|3.6.*|3.4.*']   - python-dateutil -> python[version='>=3.8,<3.9.0a0']   - pywinpty -> python=3.4   - qtawesome -> python[version='>=3.8,<3.9.0a0']   - scikit-learn -> python[version='2.7.*|3.5.*|3.6.*']   - scipy -> python[version='3.5.*|3.6.*']   - seaborn -> python[version='>=3.8,<3.9.0a0']   - sortedcollections -> python[version='>=3.8,<3.9.0a0']   - sphinx -> python[version='>=3.8,<3.9.0a0']   - sphinxcontrib-websupport -> python[version='>=3.8,<3.9.0a0']   - testpath -> python[version='3.4.*|>=3.8,<3.9.0a0']   - watchdog -> python[version='>=3.5,<3.6.0a0']   - zict -> python[version='>=3.8,<3.9.0a0'] Your python: python=3.7 If python is on the left-most side of the chain, that's the version you've asked for. When python appears to the right, that indicates that the thing on the left is somehow not available for the python version you are constrained to. Note that conda will not change your python version to a different minor version unless you explicitly specify that. The following specifications were found to be incompatible with each other: Output in format: Requested package -> Available versions Package ca-certificates conflicts for: watchdog -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates wincertstore -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pep8 -> python -> ca-certificates babel -> python -> ca-certificates prometheus_client -> python -> ca-certificates libarchive -> openssl[version='>=1.1.1f,<1.1.2a'] -> ca-certificates msgpack-python -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates packaging -> python -> ca-certificates setuptools -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates keyring -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates widgetsnbextension -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pycurl -> openssl[version='>=1.1.1a,<1.1.2a'] -> ca-certificates prompt_toolkit -> python -> ca-certificates distributed -> openssl!=1.1.1e -> ca-certificates jupyter_console -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates sympy -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates networkx -> python -> ca-certificates pandocfilters -> python -> ca-certificates pyrsistent -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates parso -> python -> ca-certificates zipp -> python -> ca-certificates tqdm -> python -> ca-certificates mkl_fft -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates openpyxl -> python -> ca-certificates lxml -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pytest-astropy-header -> python -> ca-certificates nose -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates mpmath -> python -> ca-certificates python-dateutil -> python -> ca-certificates ipython_genutils -> python -> ca-certificates numpydoc -> python -> ca-certificates backports.functools_lru_cache -> python -> ca-certificates matplotlib-base -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates path.py -> python -> ca-certificates anaconda-project -> python -> ca-certificates pyflakes -> python -> ca-certificates jupyter_core -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates soupsieve -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates comtypes -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates intervaltree -> python -> ca-certificates cffi -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates certifi -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates joblib -> python -> ca-certificates python-jsonrpc-server -> python -> ca-certificates gevent -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates flake8 -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates ujson -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates sip -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pytest-openfiles -> python -> ca-certificates win_inet_pton -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates mccabe -> python -> ca-certificates jupyter_client -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates partd -> python -> ca-certificates boto -> python -> ca-certificates xlrd -> python -> ca-certificates tblib -> python -> ca-certificates attrs -> python -> ca-certificates json5 -> python -> ca-certificates qdarkstyle -> python -> ca-certificates glob2 -> python -> ca-certificates bkcharts -> python=2.7 -> ca-certificates hypothesis -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pygments -> python -> ca-certificates ply -> python -> ca-certificates pathtools -> python -> ca-certificates pyzmq -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates conda-env -> python=2.7 -> ca-certificates powershell_shortcut -> python -> ca-certificates libssh2 -> openssl[version='>=1.1.1a,<1.1.2a'] -> ca-certificates pyopenssl -> python -> ca-certificates yapf -> python -> ca-certificates pywavelets -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pycrypto -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates kiwisolver -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates clyent -> python -> ca-certificates requests -> python -> ca-certificates urllib3 -> python[version='<4.0'] -> ca-certificates imageio -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates werkzeug -> python -> ca-certificates olefile -> python -> ca-certificates cython -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates nbconvert -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates sortedcollections -> python -> ca-certificates lazy-object-proxy -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pluggy -> python -> ca-certificates jinja2 -> python -> ca-certificates backports.shutil_get_terminal_size -> python -> ca-certificates pytables -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates conda[version='>=4.8.2'] -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates more-itertools -> python -> ca-certificates notebook -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates singledispatch -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates defusedxml -> python -> ca-certificates heapdict -> python -> ca-certificates seaborn -> python -> ca-certificates pycosat -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pyqt -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates openssl -> ca-certificates bleach -> python -> ca-certificates toolz -> python -> ca-certificates ipykernel -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates isort -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates sphinxcontrib-websupport -> python -> ca-certificates dask-core -> python -> ca-certificates pickleshare -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates cytoolz -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates cryptography -> openssl[version='>=1.1.1a,<1.1.2a'] -> ca-certificates ipywidgets -> python -> ca-certificates importlib_metadata -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates statsmodels -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates mistune -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pycodestyle -> python -> ca-certificates simplegeneric -> python -> ca-certificates anaconda-client -> python -> ca-certificates click -> python -> ca-certificates console_shortcut -> python -> ca-certificates pytest-astropy -> python -> ca-certificates sortedcontainers -> python -> ca-certificates mkl-service -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates conda-package-handling -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pytest-doctestplus -> python -> ca-certificates diff-match-patch -> python -> ca-certificates pyyaml -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates jsonschema -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates astropy -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates python=3.7 -> openssl[version='>=1.1.1e,<1.1.2a'] -> ca-certificates filelock -> python -> ca-certificates rtree -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates numpy-base -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates llvmlite -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates navigator-updater -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates bcrypt -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pywin32 -> python=2.7 -> ca-certificates colorama -> python -> ca-certificates chardet -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates idna -> python -> ca-certificates jedi -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates future -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates entrypoints -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates xlwings -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates numpy -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates _ipyw_jlab_nb_ext_conf -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates et_xmlfile -> python -> ca-certificates terminado -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates qt -> openssl[version='>=1.1.1c,<1.1.2a'] -> ca-certificates fastcache -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates dlib -> python=2.7 -> ca-certificates unicodecsv -> python -> ca-certificates qtconsole -> python -> ca-certificates rope -> python -> ca-certificates cycler -> python -> ca-certificates imagesize -> python -> ca-certificates atomicwrites -> python -> ca-certificates wrapt -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates send2trash -> python -> ca-certificates conda-verify -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates dask -> openssl!=1.1.1e -> ca-certificates pip -> python -> ca-certificates autopep8 -> python -> ca-certificates anaconda==2020.02 -> ca-certificates==2020.1.1=0 astroid -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates h5py -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates win_unicode_console -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pytest -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates docutils -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates xmltodict -> python -> ca-certificates backports.weakref -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates matplotlib -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates ipython -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates numba -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates tornado -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pyodbc -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates python-language-server -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates sphinxcontrib -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates beautifulsoup4 -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates mock -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pylint -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates anaconda==2020.02 -> openssl==1.1.1d=he774522_4 -> ca-certificates alabaster -> python -> ca-certificates wheel -> python -> ca-certificates spyder-kernels -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates conda-build -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates scikit-image -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates markupsafe -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pywin32-ctypes -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates xlwt -> python -> ca-certificates krb5 -> openssl[version='>=1.1.1a,<1.1.2a'] -> ca-certificates asn1crypto -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pillow -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pytz -> python -> ca-certificates qtpy -> python -> ca-certificates bottleneck -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates decorator -> python -> ca-certificates qtawesome -> python -> ca-certificates webencodings -> python -> ca-certificates psutil -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates menuinst -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates scipy -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates contextlib2 -> python -> ca-certificates six -> python -> ca-certificates nbformat -> python -> ca-certificates pywinpty -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates py -> python -> ca-certificates backports.tempfile -> python -> ca-certificates testpath -> python -> ca-certificates sqlalchemy -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates html5lib -> python -> ca-certificates backcall -> python -> ca-certificates pytest-arraydiff -> python -> ca-certificates pexpect -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates snowballstemmer -> python -> ca-certificates jupyter -> python -> ca-certificates scikit-learn -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates spyder -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pynacl -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates paramiko -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates nltk -> python -> ca-certificates anaconda-navigator -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pysocks -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates locket -> python -> ca-certificates bokeh -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pkginfo -> python -> ca-certificates pycparser -> python -> ca-certificates jupyterlab -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pathlib2 -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates bitarray -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates jdcal -> python -> ca-certificates argh -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates itsdangerous -> python -> ca-certificates pydocstyle -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates backports -> python -> ca-certificates wcwidth -> python -> ca-certificates cloudpickle -> python -> ca-certificates greenlet -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pyreadline -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates traitlets -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates zict -> python -> ca-certificates multipledispatch -> python -> ca-certificates pandas -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates flask -> python -> ca-certificates patsy -> python -> ca-certificates python-libarchive-c -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates sphinx -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates pyparsing -> python -> ca-certificates pytest-remotedata -> python -> ca-certificates xlsxwriter -> python -> ca-certificates numexpr -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates ruamel_yaml -> python[version='>=2.7,<2.8.0a0'] -> ca-certificates 이 뒤로 훨씬 길게 써있어서 .. 어떻게 해야할지 모르겠네요

안녕하십니까 좋은 강의 감사드립니다. 벨만포드 알고리즘코드 관련하여 질문이있습니다. for(i=1; i<n; i++){   for(j=0; j<Ed.size(); j++){ int s=Ed[j].s; int e=Ed[j].e; int w=Ed[j].val; if(dist[s]!=2147000000 && dist[s]+w<dist[e]){ dist[e]=dist[s]+w; } } } 여기서 바깥 for문이 i에 따라 1일때는 한번만에 가는 경우, 2일 때는 두번만의 가는 경우 ..... n-1번만에 가는경우 라고 설명 해 주셨는데 바깥 for문이 없더라도 안 쪽 for문 만으로 n-1번만에 가는 경우를 다 따지는 거 같은데 혹시 제가 잘못 이해한 것 인지... 입력이 vertex number 순으로 순차적으로 받게 되는데 예를들어 i가 1이고 안쪽 for 문을 j가 1일때 돌며 1->2 가는 것을 추가하여서 dist[2]=x를 넣게되면 그다음 j가 2가 될때는 dist[2]!=2147000000 조건에 걸리지 않게 되고 2에서 가는 경우의 수를 검토하게 되는데 그렇게 되면 이것은 두번만에 가는 경우가 되는것이 아닙니까??

userSchema.pre("save", function (next) {   var user = this;   if (user.isModified("password")) {     bcrypt.genSalt(saltRounds, function (err, salt) {       ... var user = this 를 하면 user 에는 뭐가 담기게 되는거죠?ㅠㅠ 또 여기서 var user = this 를 선언을 했는데 userSchema.methods.generateToken = function (callback) {   var user = this;   var token = jwt.sign(user._id.toHexString(), "secretToken");    ... 왜 여기서 또 선언을 하는 거에요?  User.js 에서 user 이라는 변수가 뭔지 정확히 모르겠습니다ㅠㅠ

안녕하세요 테스트 돌릴때는  정상적으로 인서트 및 @Transactional를 활용한 롤백 등 의도 동작이 되는데 API의 JSON 형태로 던지면 javax.persistence.TransactionRequiredException: No EntityManager with actual transaction available for current thread - cannot reliably process 'persist' call 의 경우가 발생 하는데 어떤 문제인지 힌트좀 주실 수 있을까요.. EntityManagerFactory emf = Persistence.createEntityManagerFactory("unitname");// EntityManager em = emf.createEntityManager();// EntityTransaction tx = em.getTransaction();// System.out.println("event Insert Start"); EntityTransaction tx = em.getTransaction(); tx.begin(); em.persist(event); tx.commit(); em.close(); 위 처럼 해당 Dao에서 엔티티매니저를 생성 해서 사용하면 커밋이 작동 하긴 합니다..

안녕하세요 현재 수강하고 있습니다. 지금 이틀째 로그인이 되지 않고 있어서 그러는데 질문 좀 드려도 될까요?ㅠ postman으로 회원가입까진 됩니다ㅠ 근데 로그인만 할라하면 아래처럼 나옵니다.. 인터넷에 나온건  postman설정들어가래서 프록시도 만져보고 했는데도 잘 안되네요..ㅠ 제가 작성한 코드입니다.. user.js index.js 어느 부분이 잘못된걸까요?ㅠ 제 깃헙 주소입니다! https://github.com/yyoungeun/bolier-plate-ko 답변 부탁드립니다..! 감사합니다!

from sys import * 대신 import sys 만 써주신 이유가 궁금합니다. 차이를 알기 위해선 어느 강의를 들어야 하는지도 말씀해 주시면 감사하겠습니다!

  User.findOne({ email: req.body.email }, function (err, user) {     if (!user) {       return res.json({         loginSuccess: false,         message: "유저를 찾을 수 없습니다.",       });     } 여기서 (!user) 대신 (err) 해도 문제 괜찮은 거죠 ?  감사합니다 강의 정말 잘 듣고 있습니다 ㅠㅠ

jquery-3.5.0.min.js:2 POST http://localhost:5000/board/upload_image 500 (INTERNAL SERVER ERROR) 현재 이런서버에서 에러가 발생한다고 나오는데 영상에서의 내용은 모두 수정한 상태입니다. 사진 업로드가 되지 않고요. 파이썬 내용입니다.   TypeError: The view function did not return a valid response. The function either returned None or ended without a return statement. 2번째 질문으로는 autoescape false로 해둔 상황인데 글 수정을 적을때는 p태그가 다시 나옵니다 edit에도 똑같이 코드를 적어보긴했습니다.

선생님 방문한 map 을 1로 바꾸시는데 int dx[] ={1, 0, -1, 0} int dy[] ={0, 1, 0, -1} 0 0 1  0 0 1 1 0 0 이 경우 (1,1)에서 (1,2),(2,1)을 차례로 방문후 1 1 1 1 0 1 1 0 0  이 상태에서 (1,2)에서 다시 for문 돌면서 (2,2)를 1로 변경합니다. 1 1 1  1 1 1  1 0 0  그럼 큐에 남아있는 (2,1)에서 (2,2)로 가는 경우가 사라지게 되는데 이 경우 무시해도 괜찮나요? 최단거리값이라 상관없는건가요?  큐에서 pop()해서 직접 방문한것도 아니고, 큐에push()만 했는데 방문한걸로 취급(?)해도 되나해서요 질문이 엉뚱하죠 뭔가 찜찜?해서 질문드려요ㅋㅋ 강의 잘 보고 있습니다. 좋은하루되세요

for(let i=0; i<=arr.length-1; i++){ if(arr[i] +1 !== arr[i + 1]){ console.log(arr[i] +1) //11 console.log(arr[i + 1]) //2 return 'NO' }else{ return 'YES' } } 조건식 이 무조건 NO가 나오는것 같은데 초보라서 잘모르겠어요.확인 부탁드릴게요!

댓글삭제 기능도 해보고싶어서 사가 리듀서 백라우트 프론트 코드 작성해봤어요~ 401Unauthorized 에러뜨는데 어떤 부분을 고쳐야 할까요? // 댓글삭제하기     const onRemoveComments = useCallback(userId => () => {         alert('댓글을 삭제하시겠습니까?');         dispatch({           type: REMOVE_COMMENT_REQUEST,           data: userId,         });    }); < post.js/reducers >  // 댓글 지우기         case REMOVE_COMMENT_REQUEST: {             return {                 ...state,             };         }         case REMOVE_COMMENT_SUCCESS: {              const postIndex = state.mainPosts.findIndex(v => v.id === action.data.postId);             const post = state.mainPosts[postIndex];             const Comments = post.Comments.filter(v => v.id !== action.data.comments );             const mainPosts = [...state.mainPosts];             mainPosts[postIndex] = { ...post, Comments };             return {                 ...state,                 mainPosts,             };         }          case REMOVE_COMMENT_FAILURE: {             return {                 ...state,             };         } < post.js/sagas > // 댓글 지우기 function removeCommentsAPI(postId) {   return axios.delete(`/post/${postId}/comment`); }   function* removeComments(action) {   try {       const result = yield call(removeCommentsAPI, action.data);       yield put({       type: REMOVE_COMMENT_SUCCESS,       data: {           postId: action.data,           comments: result.data,       },       });   } catch (e) {       console.error(e);       yield put({       type: REMOVE_COMMENT_FAILURE,       error: e,       });   } } -백 <post.js/routes> // 댓글삭제하기 routes router.delete('/:id/comment', isLoggedIn, async (req, res, next) => {   try {     const comment = await db.Comment.findOne({ where: { id: req.params.id } });     if (!comment) {       return res.status(404).send('댓글이 존재하지 않습니다.');     }     await db.Comment.destroy({ where: { id: req.params.id } });     res.send(req.params.id);   } catch (e) {     console.error(e);     next(e);   } });

삭제된 글입니다

안녕하십니까 좋은 강의 감사합니다. 강의를 듣던도중 궁금한 게 생겼습니다. bool opearator<( ){ } 이것이 일반 함수 형태와는 다르게 생겨 의미를 파악하기가 어려운데 어떻게 이해하면 되겠습니까?? 또 어떤 강좌에서는 매게변수로, { 앞에 const 를 붙이지 않는데 어떤 강좌에서는 const를 붙입니다. const를 붙이지 않을경우 될 때도 있으며 안될 때도 있는데 어떤 차이이며 어떤 의미인지가 궁금합니다.

MY_HOT_KEYS = [     {"function1": {Key.shift, KeyCode(char='a')}},     {"function2": {Key.ctrl_l, Key.alt_l, KeyCode(char='n')}},     {"function3": {Key.shift_l, Key.f1}}, ] 해당 코드를 jupyter에서 실행할경우,  function1의 {Key.shift, KeyCode(char='a') 구문에서, 소문자 a키로 작성된부분이 shift 키를 누루게 되면서, 대문자 A가 출력되어 function1의 함수가 동작 하지않는데요, (char='a' -> char='A') 이렇게 소문자를 대문자로 수정해주면 function1의 함수가 정상 실행됩니다. 혹시, ms code에서처럼, jupyter에서도 소문자로 표기해도 실행될수 있는 방법이있나요? 혹시나 해서  (char='a').lower() 를 해봤는데, 이건 안되네요....