Google Colab 基本操作

## 上傳

from google.colab import files

uploaded = files.upload()

for fn in uploaded.keys():
  print('User uploaded file "{name}" with length {length} bytes'.format(
      name=fn, length=len(uploaded[fn])))

 

## 下載

from google.colab import files

with open('example.txt', 'w') as f:
  f.write('some content')

files.download('example.txt')

 

## 獲取谷歌硬盤的文件

## 方法1 要輸入授權碼 整個谷歌硬盤整體掛載

from google.colab import drive
drive.mount('/content/gdrive')

## 方法2 下載並解壓，壓縮文件

從google drive 選擇某個壓縮文件並解壓（這里file_id的獲取需要右鍵點擊上傳文件，選擇“獲取共享鏈接”。將Google Drive的zip文件的共享鏈接復制后

截取"open?id="后面的一串地址字符 粘貼到下面第二個代碼塊file_id=' xxxxxxxxxxx '的X的部分）

!pip install PyDrive googledrivedownloader

from google_drive_downloader import GoogleDriveDownloader

GoogleDriveDownloader.download_file_from_google_drive(file_id='1I4YGP8LsZMJ6nyv0y3ncklds94XTg19z',dest_path="./tmp.zip",unzip=True)

!rm tmp.zip
!ls

 

### 寫入並存儲文件

with open('/content/gdrive/My Drive/foo.txt', 'w') as f:
  f.write('Hello Google Drive!')
!cat /content/gdrive/My\ Drive/foo.txt

 

### 升級安裝 TensorFlow 

# To determine which version you're using:
!pip show tensorflow

# For the current version: 
!pip install --upgrade tensorflow

# For a specific version:
!pip install tensorflow==1.2

# For the latest nightly build:
!pip install tf-nightly

 

### 導入colab默認中沒有的庫 `!pip install` or `!apt-get install`

!pip install -q xxx

!apt-get -qq install -y xxx