I created a fresh conda environment and installed fast ai as below:
conda create -n fai_course python=3.7 source activate fai_course conda install -c pytorch pytorch-nightly-cpu conda install -c fastai torchvision-nightly-cpu jupyter notebook
but when I import the followings, I get OSError
from fastai.imports import * from fastai.torch_imports import * from fastai.transforms import * from fastai.conv_learner import * from fastai.model import * from fastai.dataset import * from fastai.sgdr import * from fastai.plots import *
the error is:
--------------------------------------------------------------------------- FileNotFoundError Traceback (most recent call last) /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/matplotlib/font_manager.py in <module> 1352 try: -> 1353 fontManager = json_load(_fmcache) 1354 if (not hasattr(fontManager, '_version') or /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/matplotlib/font_manager.py in json_load(filename) 887 """ --> 888 with open(filename, 'r') as fh: 889 return json.load(fh, object_hook=_json_decode) FileNotFoundError: [Errno 2] No such file or directory: '/Users/alieftekhari/.matplotlib/fontlist-v300.json' During handling of the above exception, another exception occurred: OSError Traceback (most recent call last) <ipython-input-6-94fabf9055d8> in <module> ----> 1 from fastai.imports import * 2 from fastai.torch_imports import * 3 from fastai.transforms import * 4 from fastai.conv_learner import * 5 from fastai.model import * /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/fastai/__init__.py in <module> ----> 1 from .basic_train import * 2 from .callback import * 3 from .callbacks import * 4 from .core import * 5 from .data import * /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/fastai/basic_train.py in <module> 1 "Provides basic training and validation with `Learner`" ----> 2 from .torch_core import * 3 from .data import * 4 from .callback import * 5 /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/fastai/torch_core.py in <module> 1 "Utility functions to help deal with tensors" ----> 2 from .imports.torch import * 3 from .core import * 4 5 AffineMatrix = Tensor /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/fastai/imports/__init__.py in <module> ----> 1 from .core import * 2 from .torch import * /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/fastai/imports/core.py in <module> 1 import csv, gc, gzip, os, pickle, shutil, sys, warnings ----> 2 import math, matplotlib.pyplot as plt, numpy as np, pandas as pd, random 3 import scipy.stats, scipy.special 4 import abc, collections, hashlib, itertools, json, operator 5 import mimetypes, inspect, typing, functools /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/matplotlib/pyplot.py in <module> 30 from cycler import cycler 31 import matplotlib ---> 32 import matplotlib.colorbar 33 import matplotlib.image 34 from matplotlib import rcsetup, style /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/matplotlib/colorbar.py in <module> 30 import matplotlib.collections as collections 31 import matplotlib.colors as colors ---> 32 import matplotlib.contour as contour 33 import matplotlib.cm as cm 34 import matplotlib.gridspec as gridspec /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/matplotlib/contour.py in <module> 16 import matplotlib.colors as mcolors 17 import matplotlib.collections as mcoll ---> 18 import matplotlib.font_manager as font_manager 19 import matplotlib.text as text 20 import matplotlib.cbook as cbook /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/matplotlib/font_manager.py in <module> 1361 raise 1362 except Exception: -> 1363 _rebuild() 1364 else: 1365 _rebuild() /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/matplotlib/font_manager.py in _rebuild() 1342 global fontManager 1343 -> 1344 fontManager = FontManager() 1345 1346 if _fmcache: /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/matplotlib/font_manager.py in __init__(self, size, weight) 976 self.defaultFont = {} 977 --> 978 ttffiles = findSystemFonts(paths) + findSystemFonts() 979 self.defaultFont['ttf'] = next( 980 (fname for fname in ttffiles /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/matplotlib/font_manager.py in findSystemFonts(fontpaths, fontext) 268 # check for OS X & load its fonts if present 269 if sys.platform == 'darwin': --> 270 fontfiles.update(OSXInstalledFonts(fontext=fontext)) 271 272 elif isinstance(fontpaths, str): /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/matplotlib/font_manager.py in OSXInstalledFonts(directories, fontext) 216 directories = OSXFontDirectories 217 return [path --> 218 for directory in directories 219 for ext in get_fontext_synonyms(fontext) 220 for path in list_fonts(directory, ext)] /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/matplotlib/font_manager.py in <listcomp>(.0) 218 for directory in directories 219 for ext in get_fontext_synonyms(fontext) --> 220 for path in list_fonts(directory, ext)] 221 222 /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/matplotlib/font_manager.py in list_fonts(directory, extensions) 155 extensions = ["." + ext for ext in extensions] 156 return [str(path) --> 157 for path in filter(Path.is_file, Path(directory).glob("**/*.*")) 158 if path.suffix in extensions] 159 /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/matplotlib/font_manager.py in <listcomp>(.0) 154 """ 155 extensions = ["." + ext for ext in extensions] --> 156 return [str(path) 157 for path in filter(Path.is_file, Path(directory).glob("**/*.*")) 158 if path.suffix in extensions] /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pathlib.py in glob(self, pattern) 1080 raise NotImplementedError("Non-relative patterns are unsupported") 1081 selector = _make_selector(tuple(pattern_parts)) -> 1082 for p in selector.select_from(self): 1083 yield p 1084 /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pathlib.py in _select_from(self, parent_path, is_dir, exists, scandir) 541 try: 542 successor_select = self.successor._select_from --> 543 for starting_point in self._iterate_directories(parent_path, is_dir, scandir): 544 for p in successor_select(starting_point, is_dir, exists, scandir): 545 if p not in yielded: /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pathlib.py in _iterate_directories(self, parent_path, is_dir, scandir) 531 if entry.is_dir() and not entry.is_symlink(): 532 path = parent_path._make_child_relpath(entry.name) --> 533 for p in self._iterate_directories(path, is_dir, scandir): 534 yield p 535 except PermissionError: /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pathlib.py in _iterate_directories(self, parent_path, is_dir, scandir) 531 if entry.is_dir() and not entry.is_symlink(): 532 path = parent_path._make_child_relpath(entry.name) --> 533 for p in self._iterate_directories(path, is_dir, scandir): 534 yield p 535 except PermissionError: /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pathlib.py in _iterate_directories(self, parent_path, is_dir, scandir) 531 if entry.is_dir() and not entry.is_symlink(): 532 path = parent_path._make_child_relpath(entry.name) --> 533 for p in self._iterate_directories(path, is_dir, scandir): 534 yield p 535 except PermissionError: /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pathlib.py in _iterate_directories(self, parent_path, is_dir, scandir) 531 if entry.is_dir() and not entry.is_symlink(): 532 path = parent_path._make_child_relpath(entry.name) --> 533 for p in self._iterate_directories(path, is_dir, scandir): 534 yield p 535 except PermissionError: /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pathlib.py in _iterate_directories(self, parent_path, is_dir, scandir) 531 if entry.is_dir() and not entry.is_symlink(): 532 path = parent_path._make_child_relpath(entry.name) --> 533 for p in self._iterate_directories(path, is_dir, scandir): 534 yield p 535 except PermissionError: /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pathlib.py in _iterate_directories(self, parent_path, is_dir, scandir) 531 if entry.is_dir() and not entry.is_symlink(): 532 path = parent_path._make_child_relpath(entry.name) --> 533 for p in self._iterate_directories(path, is_dir, scandir): 534 yield p 535 except PermissionError: /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pathlib.py in _iterate_directories(self, parent_path, is_dir, scandir) 531 if entry.is_dir() and not entry.is_symlink(): 532 path = parent_path._make_child_relpath(entry.name) --> 533 for p in self._iterate_directories(path, is_dir, scandir): 534 yield p 535 except PermissionError: /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/pathlib.py in _iterate_directories(self, parent_path, is_dir, scandir) 529 entries = list(scandir(parent_path)) 530 for entry in entries: --> 531 if entry.is_dir() and not entry.is_symlink(): 532 path = parent_path._make_child_relpath(entry.name) 533 for p in self._iterate_directories(path, is_dir, scandir): OSError: [Errno 62] Too many levels of symbolic links: '.Trash/NETGEARGenie.app/Contents/Frameworks/QtPrintSupport.framework/Versions/5/5'